How to Reset Windows Defender Settings
If Windows Defender (Microsoft Defender Antivirus) is acting up—won't open, shows error messages,...
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1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listFix Windows Defender Threat History Not Loading Due to Timeout
When you open Windows Security and click on 'Threat history', you might see a spinning circle fol...
Fix Windows Security Authentication Failed Event ID 4625
If you're seeing Event ID 4625 in Windows Security logs, it means an account failed to log on. Th...
How to Enable BitLocker Service When It's Unavailable
You open BitLocker Drive Encryption and see "BitLocker service is unavailable" or the service won...
Fix 'Windows Security App Not Installed' on Windows 10
You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...
Fix Port Already Allocated Error When Windows Security Is Off
You try to start a local server or application and get an error saying the port is already alloca...
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