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Enable Windows Security Manually When It Fails to Start

If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...

Fix Windows Defender Sync Error 504 Gateway Timeout

If you see a "504 Gateway Timeout" error when Windows Defender tries to sync, it usually means th...

Fix Windows Security Offline Installer Stuck Issues

You download the Windows Security offline installer (the .cab or .psf file) to update Defender de...

How to Fix 502 Bad Gateway in PowerShell Invoke-WebRequest