diff --git a/blocks/rss_client/db/access.php b/blocks/rss_client/db/access.php
index a04b5a02c8cee..3c67fa2cfcdd8 100644
--- a/blocks/rss_client/db/access.php
+++ b/blocks/rss_client/db/access.php
@@ -38,8 +38,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -52,9 +50,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -66,8 +61,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -80,15 +73,10 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     )
 
 );
 
-?>
\ No newline at end of file
+?>
diff --git a/enrol/authorize/db/access.php b/enrol/authorize/db/access.php
index 98eeaa8f2c795..de6dc5796cd39 100644
--- a/enrol/authorize/db/access.php
+++ b/enrol/authorize/db/access.php
@@ -6,11 +6,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PROHIBIT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     )
diff --git a/lib/db/access.php b/lib/db/access.php
index defc404cb8aca..db2f2e6072c76 100644
--- a/lib/db/access.php
+++ b/lib/db/access.php
@@ -87,11 +87,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -101,11 +96,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -115,11 +105,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -131,8 +116,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -147,9 +130,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -163,9 +143,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -179,9 +156,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -193,8 +167,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -207,8 +179,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -221,9 +191,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -237,8 +204,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -253,9 +218,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -269,11 +231,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -286,11 +243,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -300,11 +252,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -316,11 +263,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -330,11 +272,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_ALLOW,
-            'teacher' => CAP_ALLOW,
-            'editingteacher' => CAP_ALLOW,
-            'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
         )
     ),
@@ -346,8 +283,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -359,7 +294,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -375,11 +309,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -389,9 +318,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -403,11 +329,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -417,11 +338,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -430,8 +346,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => (empty($CFG->allowunenrol)) ? CAP_PREVENT : CAP_ALLOW,
+            'student' => (empty($CFG->allowunenrol)) ? CAP_INHERIT : CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -443,8 +358,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -457,11 +370,7 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -471,11 +380,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSECAT,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -485,11 +389,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSECAT,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -499,11 +398,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSECAT,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -513,11 +407,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSECAT,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -529,10 +418,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
         )
@@ -543,11 +428,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -559,9 +439,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -589,8 +466,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -605,8 +480,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -619,10 +492,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
         )
@@ -633,10 +502,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
         )
@@ -649,9 +514,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -665,8 +527,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -679,9 +539,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -693,9 +550,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -707,8 +561,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -721,7 +573,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -735,7 +586,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -749,9 +599,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -763,9 +610,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -777,9 +621,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -807,7 +648,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -823,11 +663,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -839,7 +674,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -855,8 +689,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -871,7 +703,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -887,8 +718,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -902,7 +731,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_USER,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -915,7 +743,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_USER,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -928,8 +755,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_USER,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -944,11 +769,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_USER,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -960,9 +780,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -973,9 +790,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -986,9 +800,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -1002,9 +813,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -1015,8 +823,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -1028,9 +834,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -1041,11 +844,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -1054,9 +853,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -1067,9 +863,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -1080,8 +873,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -1093,9 +884,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
diff --git a/mod/assignment/db/access.php b/mod/assignment/db/access.php
index 06305f1f642a6..0028495591a26 100644
--- a/mod/assignment/db/access.php
+++ b/mod/assignment/db/access.php
@@ -52,12 +52,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_ALLOW,
-            'teacher' => CAP_INHERIT,
-            'editingteacher' => CAP_INHERIT,
-            'coursecreator' => CAP_INHERIT,
-            'admin' => CAP_INHERIT
+            'student' => CAP_ALLOW
         )
     ),
 
@@ -66,8 +61,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/chat/db/access.php b/mod/chat/db/access.php
index 4c7ebfae8d28f..202b4baa96ccb 100644
--- a/mod/chat/db/access.php
+++ b/mod/chat/db/access.php
@@ -40,7 +40,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -54,7 +53,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -68,8 +66,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/choice/db/access.php b/mod/choice/db/access.php
index cbe4d0c167551..c97a321856edc 100644
--- a/mod/choice/db/access.php
+++ b/mod/choice/db/access.php
@@ -38,7 +38,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -52,8 +51,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -66,8 +63,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -80,8 +75,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/data/db/access.php b/mod/data/db/access.php
index dfed91c8b4a6a..4be4d570237a7 100644
--- a/mod/data/db/access.php
+++ b/mod/data/db/access.php
@@ -38,7 +38,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -54,7 +53,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -70,7 +68,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -84,8 +81,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -98,8 +93,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -112,8 +105,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -126,8 +117,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -140,8 +129,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -156,8 +143,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -170,8 +155,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -184,11 +167,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     )
diff --git a/mod/exercise/db/access.php b/mod/exercise/db/access.php
index 6ae31c75d8664..12223a1d921a2 100644
--- a/mod/exercise/db/access.php
+++ b/mod/exercise/db/access.php
@@ -38,8 +38,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -49,4 +47,4 @@
 
 );
 
-?>
\ No newline at end of file
+?>
diff --git a/mod/forum/db/access.php b/mod/forum/db/access.php
index 724a694543195..a30e2190f9828 100644
--- a/mod/forum/db/access.php
+++ b/mod/forum/db/access.php
@@ -52,8 +52,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -68,7 +66,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -84,7 +81,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -98,7 +94,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -112,8 +107,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -126,8 +119,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -142,7 +133,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -156,7 +146,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -170,8 +159,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -184,8 +171,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -198,8 +183,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -214,8 +197,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -228,8 +209,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -242,8 +221,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -256,8 +233,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -272,8 +247,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/glossary/db/access.php b/mod/glossary/db/access.php
index 6a3254cae78e6..be881aae08bc3 100644
--- a/mod/glossary/db/access.php
+++ b/mod/glossary/db/access.php
@@ -40,7 +40,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -54,8 +53,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -68,8 +65,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -84,7 +79,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -98,8 +92,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -114,8 +106,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -128,8 +118,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -142,8 +130,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -156,8 +142,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -170,8 +154,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/hotpot/db/access.php b/mod/hotpot/db/access.php
index b7b52b6c45dc9..65f461d9fc4ac 100644
--- a/mod/hotpot/db/access.php
+++ b/mod/hotpot/db/access.php
@@ -38,7 +38,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -52,8 +51,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -66,8 +63,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -80,9 +75,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -91,4 +83,4 @@
 
 );
 
-?>
\ No newline at end of file
+?>
diff --git a/mod/lams/db/access.php b/mod/lams/db/access.php
index 9d50638f2fb0c..d229e129583ff 100644
--- a/mod/lams/db/access.php
+++ b/mod/lams/db/access.php
@@ -11,12 +11,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_ALLOW,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'student' => CAP_ALLOW
         )
     ),
 
@@ -25,12 +20,9 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     )
-);
\ No newline at end of file
+);
diff --git a/mod/lesson/db/access.php b/mod/lesson/db/access.php
index a716a1f087880..4cb192b81a9cc 100644
--- a/mod/lesson/db/access.php
+++ b/mod/lesson/db/access.php
@@ -13,9 +13,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -27,8 +24,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/quiz/db/access.php b/mod/quiz/db/access.php
index eacce0c20e22e..b3abe03ebd116 100644
--- a/mod/quiz/db/access.php
+++ b/mod/quiz/db/access.php
@@ -28,12 +28,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_ALLOW,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'student' => CAP_ALLOW
         )
     ),
 
@@ -43,9 +38,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
@@ -58,8 +50,6 @@
         'captype' => 'write', // Only just a write.
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -73,8 +63,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -88,8 +76,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -103,9 +89,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
-            'teacher' => CAP_PREVENT,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
             'admin' => CAP_ALLOW
diff --git a/mod/scorm/db/access.php b/mod/scorm/db/access.php
index f8234932b101a..0ecaa8283c04e 100644
--- a/mod/scorm/db/access.php
+++ b/mod/scorm/db/access.php
@@ -38,8 +38,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -52,12 +50,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_ALLOW,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'student' => CAP_ALLOW
         )
     ),
 
@@ -66,12 +59,11 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'editingteacher' => CAP_ALLOW,
+            'coursecreator' => CAP_ALLOW,
+            'admin' => CAP_ALLOW
         )
     ),
 
@@ -80,12 +72,11 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'teacher' => CAP_ALLOW,
+            'editingteacher' => CAP_ALLOW,
+            'coursecreator' => CAP_ALLOW,
+            'admin' => CAP_ALLOW
         )
     )
 
diff --git a/mod/survey/db/access.php b/mod/survey/db/access.php
index d589f5a278766..0327500c5bc91 100644
--- a/mod/survey/db/access.php
+++ b/mod/survey/db/access.php
@@ -38,7 +38,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
@@ -52,8 +51,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -66,8 +63,6 @@
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
@@ -77,4 +72,4 @@
 
 );
 
-?>
\ No newline at end of file
+?>
diff --git a/mod/wiki/db/access.php b/mod/wiki/db/access.php
index 13acf5b9edb1b..b12074b91eb25 100644
--- a/mod/wiki/db/access.php
+++ b/mod/wiki/db/access.php
@@ -13,12 +13,11 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
             'student' => CAP_ALLOW,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'coursecreator' => CAP_ALLOW,
+            'admin' => CAP_ALLOW
         )
     ),
 
@@ -29,11 +28,8 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
-            'coursecreator' => CAP_PREVENT,
             'admin' => CAP_ALLOW
         )
     ),
@@ -45,8 +41,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,
diff --git a/mod/workshop/db/access.php b/mod/workshop/db/access.php
index df1855bee4c08..7609303280089 100644
--- a/mod/workshop/db/access.php
+++ b/mod/workshop/db/access.php
@@ -13,12 +13,7 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_ALLOW,
-            'teacher' => CAP_PREVENT,
-            'editingteacher' => CAP_PREVENT,
-            'coursecreator' => CAP_PREVENT,
-            'admin' => CAP_PREVENT
+            'student' => CAP_ALLOW
         )
     ),
 
@@ -29,8 +24,6 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
         'legacy' => array(
-            'guest' => CAP_PREVENT,
-            'student' => CAP_PREVENT,
             'teacher' => CAP_ALLOW,
             'editingteacher' => CAP_ALLOW,
             'coursecreator' => CAP_ALLOW,