Fix Windows Defender Rate Limit Error Not Working
If you see a 'rate limit error' in Windows Defender and it's not working properly—scanning fails,...
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View listWindows Security Not Opening? Here's How to Fix It
You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...
Fix Windows Activation Service Unavailable Without Product Key
You see 'Windows activation service unavailable' and you don't have the product key. This usually...
Fix Windows Defender Missing After Update
After a Windows update, some users find that Windows Defender is missing from the system tray, Se...
Fix Windows Activation Invalid Configuration Error
You see a message that your Windows activation is invalid due to a configuration problem. This us...
How to Configure Windows Defender Firewall Settings for a Network
If you're having trouble with network connectivity or need to allow an app through the firewall, ...
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