
Fix Windows Security 'Permission Denied' Error When Settings Won't Open
You click Windows Security (formerly Windows Defender) and get a "Permission denied" or "This set...
Software troubleshooting desk

You click Windows Security (formerly Windows Defender) and get a "Permission denied" or "This set...

If you've noticed stuttering, high CPU usage from security processes, or unexpected game crashes,...

If Windows Defender is disabled on your system—often due to group policy, third-party antivirus, ...

You open Chrome, and instead of your usual start page, you see a "504 Gateway Timeout" error. Thi...

You try to start a service or application, and you get an error like "port already allocated" or ...

You're trying to download or update an app from the Microsoft Store, and you get a message about ...