
Windows Defender Connection Refused: Troubleshooting Checklist
You open Windows Security and see "Connection refused" or "Something went wrong. Try reopening Wi...

You open Windows Security and see "Connection refused" or "Something went wrong. Try reopening Wi...

If Windows Defender is misbehaving—showing false positives, failing to update, or blocking legiti...

You try to restore a backup over a remote desktop session and nothing happens, or you get an erro...

If Windows Defender is acting up—showing incorrect threat history, failing to update, or consumin...

You may see a "version mismatch" error when using Windows Search, often after a Windows update or...

You're running Windows Defender and it throws a proxy error—often during an update or a full scan...