Windows Defender Connection Refused: Troubleshooting Checklist - Fix 'Module Not Found' Permissions Error in Microsoft Teams-Windows License Check: Retail or OEM Method

Updated 2026-06-15 19:06:16windows-fixes
Windows Defender Connection Refused: Troubleshooting Checklist - Fix 'Module Not Found' Permissions Error in Microsoft Teams-Windows License Check: Retail or OEM Method
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.