
Windows Security Connection Refused: Troubleshooting Checklist
When Windows Security reports a 'connection refused' error, it usually means the app can't reach ...
Software troubleshooting desk

When Windows Security reports a 'connection refused' error, it usually means the app can't reach ...

You try to start a remote desktop session, but the terminal or Run dialog says something like

When you see 'Outlook command not found' or 'The command line argument is not valid' on startup, ...

If you notice that PowerShell (powershell.exe or pwsh.exe) is using high CPU, and you have an ant...

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

You run a Windows Defender offline scan to remove stubborn malware, but the scan either fails to ...