diff --git a/source/UninstallTools/Junk/Finders/Registry/ComScanner.cs b/source/UninstallTools/Junk/Finders/Registry/ComScanner.cs
index 2ea9435a..f9a063cb 100644
--- a/source/UninstallTools/Junk/Finders/Registry/ComScanner.cs
+++ b/source/UninstallTools/Junk/Finders/Registry/ComScanner.cs
@@ -36,12 +36,8 @@ public override IEnumerable<IJunkResult> FindJunk(ApplicationUninstallerEntry ta
             if (string.IsNullOrEmpty(target.InstallLocation))
                 yield break;
 
-            try
-            {
-                if (UninstallToolsGlobalConfig.IsSystemDirectory(target.InstallLocation))
-                    yield break;
-            }
-            catch (ArgumentException ex) { Trace.WriteLine(ex); }
+            if (UninstallToolsGlobalConfig.IsSystemDirectory(target.InstallLocation))
+                yield break;
 
             foreach (var comEntry in _comEntries.Where(x => PathTools.SubPathIsInsideBasePath(target.InstallLocation, x.FullFilename, true)))
             {
diff --git a/source/UninstallTools/UninstallToolsGlobalConfig.cs b/source/UninstallTools/UninstallToolsGlobalConfig.cs
index cbaed15c..7ee6b7e1 100644
--- a/source/UninstallTools/UninstallToolsGlobalConfig.cs
+++ b/source/UninstallTools/UninstallToolsGlobalConfig.cs
@@ -255,7 +255,24 @@ public static bool IsSystemDirectory(DirectoryInfo dir)
         /// </summary>
         public static bool IsSystemDirectory(string installLocation)
         {
-            return IsSystemDirectory(new DirectoryInfo(installLocation));
+            if (string.IsNullOrEmpty(installLocation)) return false;
+
+            try
+            {
+                return IsSystemDirectory(new DirectoryInfo(installLocation));
+            }
+            catch (ArgumentException ex)
+            {
+                Trace.WriteLine(ex);
+                // Treat this as a no-touch directory just to be safe
+                return true;
+            }
+            catch (IOException ex)
+            {
+                Trace.WriteLine(ex);
+                // Treat this as a no-touch directory just to be safe
+                return true;
+            }
         }
 
         /// <summary>