
Windows Defender Cannot Connect: Troubleshooting Checklist
You open Windows Security and see a message like "Windows Defender cannot connect" or "Check your...
Software troubleshooting desk

You open Windows Security and see a message like "Windows Defender cannot connect" or "Check your...

After a Windows Defender scan, you may need to review the results to see what threats were found ...

If you're seeing a network error in Windows Security—like "Something went wrong" or "Can't connec...

If you see an error like "SSL certificate problem" or "There was a problem with the activation se...

If you're seeing "version mismatch" errors in Microsoft Teams, it usually means two people are ru...

If you see a proxy error in PowerShell—like Unable to connect to the remote server o...