diff --git a/lib/FusionInventory/Agent/Task/Inventory/Generic/Screen.pm b/lib/FusionInventory/Agent/Task/Inventory/Generic/Screen.pm
index 6aa698d30f..89c9a7cfab 100644
--- a/lib/FusionInventory/Agent/Task/Inventory/Generic/Screen.pm
+++ b/lib/FusionInventory/Agent/Task/Inventory/Generic/Screen.pm
@@ -8,7 +8,7 @@ use parent 'FusionInventory::Agent::Task::Inventory::Module';
 use English qw(-no_match_vars);
 use MIME::Base64;
 use UNIVERSAL::require;
-
+use Data::Dumper;
 use File::Find;
 use FusionInventory::Agent::Tools;
 use FusionInventory::Agent::Tools::Screen;
@@ -148,10 +148,15 @@ sub _getScreensFromWindows {
 
     foreach my $screen (@screens) {
         next unless $screen->{id};
-        $screen->{edid} = getRegistryValue(
-            path => "HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Enum/$screen->{id}/Device Parameters/EDID",
+        # $screen->{id} =~ s/\\/\//g;
+        $screen->{edid} = getNewRegistryValues(
+            root => "HKEY_LOCAL_MACHINE",
+            path => "SYSTEM/CurrentControlSet/Enum/$screen->{id}/Device Parameters",
+            keyName => "EDID",
             logger => $params{logger}
         );
+        print("SYSTEM/CurrentControlSet/Enum/$screen->{id}/Device Parameters/EDID");
+        print(Dumper($screen->{edid}));
         $screen->{edid} =~ s/^\s+$// if $screen->{edid};
         delete $screen->{id};
         $screen->{edid} or delete $screen->{edid};
diff --git a/lib/FusionInventory/Agent/Task/Inventory/Win32/AntiVirus.pm b/lib/FusionInventory/Agent/Task/Inventory/Win32/AntiVirus.pm
index e96369f7c1..a3cf56d83e 100644
--- a/lib/FusionInventory/Agent/Task/Inventory/Win32/AntiVirus.pm
+++ b/lib/FusionInventory/Agent/Task/Inventory/Win32/AntiVirus.pm
@@ -461,7 +461,6 @@ sub _setNortonInfos {
 sub _getSoftwareRegistryKeys {
     my ($base, $values, $callback) = @_;
 
-    my %reg;
     if (is64bit()) {
         my %reg = getNewRegistryValues(
             root   => "HKEY_LOCAL_MACHINE",
diff --git a/lib/FusionInventory/Agent/Task/Inventory/Win32/License.pm b/lib/FusionInventory/Agent/Task/Inventory/Win32/License.pm
index 3cdcd54164..52a47d49ce 100644
--- a/lib/FusionInventory/Agent/Task/Inventory/Win32/License.pm
+++ b/lib/FusionInventory/Agent/Task/Inventory/Win32/License.pm
@@ -124,7 +124,7 @@ sub _scanWmiSoftwareLicensingProducts {
 }
 
 sub _scanOfficeLicences {
-    my ($key) = @_;
+    my (%key) = @_;
 
     # registry data structure:
     # SOFTWARE/Microsoft/Office
@@ -135,7 +135,7 @@ sub _scanOfficeLicences {
     #             └── ProductID:value
     #             └── ...
 
-    foreach my $versionKey (keys %{$key}) {
+    foreach my $versionKey (keys %key) {
         my $registrationKey = $key{$versionKey}->{Registration};
         next unless $registrationKey;
 
diff --git a/lib/FusionInventory/Agent/Tools/Win32.pm b/lib/FusionInventory/Agent/Tools/Win32.pm
index 209e0dc85a..c5b6ec56a2 100644
--- a/lib/FusionInventory/Agent/Tools/Win32.pm
+++ b/lib/FusionInventory/Agent/Tools/Win32.pm
@@ -311,7 +311,7 @@ sub getNewRegistryValues {
         if ($keyType == REG_DWORD) {
             $newKeyValue = unpack("L", $keyValue);
         } else {
-            $keyValue =~ s/\x0$//;
+            $keyValue =~ s/\x00$//;
             $newKeyValue = decode("UTF-16LE", $keyValue);
             # $newKeyValue =~ s/^((?:..)*)\0\0//s;
         }
@@ -324,10 +324,17 @@ sub getNewRegistryValues {
 sub getNewRegistryValue {
     my (%params) = @_;
 
+    my $swKey;
     my $keyType;
     my $keyValue;
+    my $path = $params{path};
+    my $root = _getNewRegistryRoot(
+        root => $params{root}
+    );
 
-    RegQueryValueExW($params{swKey}, encode("UTF-16LE", $params{keyName}), [], $keyType, $keyValue, 100);
+    RegOpenKeyExW($root, encode("UTF-16LE", $path), 0, KEY_READ, $swKey);
+    RegQueryValueExW($swKey, encode("UTF-16LE", $params{keyName}), [], $keyType, $keyValue, 100);
+    return $keyValue;
 
     $keyValue =~ s/^((?:..)*)\0\0//s;
     if ($keyType == REG_DWORD) {