
Windows Security Troubleshooting Checklist
If Windows security features aren't working as expected—like Windows Defender won't start, update...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

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

When you see error 0x80070422 in Windows Defender, the Security Center service or Windows Update ...

If you see a '502 Bad Gateway' error when opening Microsoft Store on Windows 11, the store can't ...

After a recent OneDrive update, some users find their files stop syncing. The app may show "Proce...

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