
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...

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

You sign into Microsoft Teams, the window closes, and then it prompts you to sign in again. This ...

If Windows Defender keeps crashing on Windows 11, you might see error messages like "Something we...

You click an app in Microsoft Teams and see a '404 Not Found' page instead of the app loading. Th...

You open Windows Defender and see error code 0x800704cf. This usually means Windows Defender can’...

You try to open a website in Firefox and see a full-page error: "Secure Connection Failed" with a...