
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...

If you see a 'file system permission denied' error in Chrome—often when trying to save a download...

If you see a 'permission denied' error in Outlook, it usually means Outlook can't access a file o...

After a Windows update, search might stop returning results or hang indefinitely. This usually ha...

After a Chrome update, you might find your profile—bookmarks, history, passwords, extensions—seem...

You open Windows Search, type a query, and get an error like “Windows Search authentication faile...