
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 connect to a remote Windows 10 machine and the screen lags, typing is delayed, or file transf...

You might see an error saying Windows Defender has a version mismatch, or the app won't open beca...

You’ve downloaded a Windows update but the installer says a file is locked. This often happens wh...

When deploying Windows updates in disconnected environments, using the offline installer (standal...

You might see the error 'port already allocated permission denied' when OneDrive tries to sync. T...