Fix Windows Defender Module Not Found After Antivirus Uninstall - Outlook Won't Start? Add-In Conflict Fix-Fix Outlook IMAP Connection Problems

Updated 2026-06-16 00:31:18backup-recovery
Fix Windows Defender Module Not Found After Antivirus Uninstall - Outlook Won't Start? Add-In Conflict Fix-Fix Outlook IMAP Connection Problems
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.