
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, ...

After a Windows update, some users see an 'Access Denied' message when opening the Microsoft Stor...

You enter a Windows product key and see an error that the key is blocked or already in use. This ...

After a Windows update, some users find themselves stuck in a login loop when opening Windows Def...

If your PC feels sluggish and Task Manager shows Windows Security (or Antimalware Service Executa...

After upgrading to Windows 11, some users encounter a "Permission Denied" or "Access Denied" erro...