
Fix Windows Defender Rate Limit Error & Permission Denied
When Windows Defender throws a "rate limit error" or "permission denied" message, it typically ha...

When Windows Defender throws a "rate limit error" or "permission denied" message, it typically ha...

You open Windows Security and see an error like “This app can’t open because there’s a problem wi...

You open Windows Defender and see an authentication failed error. This often happens after a fail...

If you're seeing a "504 Gateway Timeout" error when using Windows Search—especially when searchin...

After a Windows update, you may see "Access Denied" when trying to search files, folders, or sett...

If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...