
Fix 'Windows Defender Failed to Start Due to Group Policy' Error
You may see an error saying 'Windows Defender failed to start due to group policy' when trying to...
Software troubleshooting desk

You may see an error saying 'Windows Defender failed to start due to group policy' when trying to...

If Windows Defender (Microsoft Defender Antivirus) is missing, disabled, or not working correctly...

You're in a meeting or trying to access a channel, and Microsoft Teams throws a 504 timeout error...

You open Microsoft Teams, but it gets stuck on the loading screen—spinning, then restarting, loop...

If you're seeing authentication errors, profile loading failures, or unexpected sign-out prompts ...

You open OneDrive and see an error about a missing or conflicting dependency. The app may fail to...