
Fix BitLocker Authentication Failed with TPM Not Working
If BitLocker prompts for a recovery key or shows "Authentication failed" and TPM is not working, ...
Software troubleshooting desk

If BitLocker prompts for a recovery key or shows "Authentication failed" and TPM is not working, ...

You see a 'permission denied' message when trying to start or interact with the Windows Defender ...

You might see a version mismatch warning when opening Windows Defender Security Center or running...

You try to enable BitLocker or change its settings, and get a "Permission denied" error with code...

When Windows Search returns a 502 Bad Gateway error, it usually means the search service or its d...

When you see a 404 Not Found error in PowerShell, it usually means something the command tried to...