
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

If Outlook won't connect to your email server or keeps timing out, your network might require a p...

You try to activate Windows and get error 0x80070002. The message often says something like “depe...

When you see a message that your Windows security token has expired, it usually means you can't a...

If you see a '404 not found' error when trying to unlock a BitLocker-encrypted drive, it usually ...

If your PC takes longer to start up than it used to, Windows Defender might be scanning too aggre...