
Fix Windows Defender 404 Not Found After Update
After installing a recent Windows update, some users find that Windows Defender is missing or sho...
Software troubleshooting desk

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

You open OneDrive and see a message like 'Token expired' or 'Sign in required' and files stop syn...

After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...

You try to run a PowerShell command and get an authentication failed error. The message might say...

When you try to connect to a remote desktop and see error 0x80070005, it usually means the accoun...

You open Outlook and see an error: "Outlook file locked by another user permission denied."