
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 Chrome shows a black screen but audio plays or tabs are visible, the issue is often software-r...

You click 'Check for updates' and after a while see error 0x800f0922. This usually happens when W...

If you see error 0x80070422 when opening Windows Defender or running a scan, the message typicall...

You set up a Cloudflare Tunnel (formerly Argo Tunnel) and now you're seeing connection timeouts. ...

If your system is running slow and Task Manager shows high CPU usage from the System process or B...