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

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

You open Microsoft Store on Windows 11 and see an error saying 'Invalid configuration' or 'Someth...

You open the Microsoft Store, sign in, and it immediately asks you to sign in again. This login l...

If you frequently see "Remote Desktop disconnected because of a timeout" or the connection drops ...

When Outlook suddenly stops connecting and shows an SSL certificate error, you typically see a me...

After a Docker Desktop update, you might see that your WSL 2 distributions no longer appear in th...