
Fix Windows Defender Connection Refused or Permission Denied Errors
If you see "connection refused" or "permission denied" when trying to start or update Windows Def...
Software troubleshooting desk

If you see "connection refused" or "permission denied" when trying to start or update Windows Def...

When you see an error like "Authentication failed" or "Logon failure: ac...

When Certbot's Nginx plugin fails, you typically see errors like Could not automatically fi...

You set up OneDrive sync, but instead of finishing, it keeps sending you back to the login screen...

If Windows Search stops returning results, takes forever to find files, or shows no results at al...

If you see a 502 Bad Gateway error when running PowerShell scripts that call web...