
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...

If Windows Security won't open, shows a blank screen, or throws errors like "Security service has...

After a Windows update, you might find that Windows Security (formerly Windows Defender) fails to...

OneDrive error 0x8004de40 usually appears when signing in or syncing. It points to a problem with...

You may see a notification that Windows Search indexing couldn't start due to an authentication f...

You open Chrome, try to load a site, and get "This site can’t be reached" or "Connection timed ou...