
Fix Windows Security 'Failed to Start' Group Policy Error
You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...

You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...

When you try to back up files using Windows Security (Windows Defender) or the built-in backup to...

You restart your computer after a Windows update, and instead of reaching the desktop, you see th...

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

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

When you need to investigate suspicious activity or a system issue, the Windows Security log is y...