How to Reinstall the Windows Security Module
If Windows Security won't open, shows errors, or you see "This app has been turned off" messages,...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
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View listFix Port Already Allocated for Task Scheduler Service
You try to start a service using Task Scheduler, but get an error that the port is already alloca...
Fix Windows Security High Memory Usage (100%)
You open Task Manager and see Windows Security (or Antimalware Service Executable) using nearly 1...
Fix Command Prompt Crashing After Run as Administrator
If Command Prompt opens and immediately closes or freezes when you run it as administrator, you'r...
Fix Windows Security Migration Not Working After Update
After a Windows update, you might find that Windows Security (formerly Windows Defender) fails to...
BitLocker SSL Certificate Error: Troubleshooting Checklist
You're setting up BitLocker Network Unlock or managing BitLocker via Group Policy, and you see an...
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