Windows Defender Troubleshooting Checklist
Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Microsoft Store High CPU Usage on Windows 11
You open Task Manager and see Microsoft Store eating 20-30% CPU, even when you're not using it. T...
Fix Windows Security App Blank White Screen
You open Windows Security and see nothing but a white screen. The app appears to load but no cont...
Fix Windows Security Service Stopped Working in Windows 10
If you see a notification that the Windows Security service has stopped working, your antivirus o...
Fix Microsoft Teams Proxy Error 0x80072746
When Microsoft Teams fails to connect and shows error 0x80072746, it typically points to a networ...
Fix Git SSL Certificate Problems: Practical Steps
If you see errors like fatal: unable to access 'https://...': SSL certificate problem: unab...
Topic paths
Quick titles
How to Reset Windows Defender SettingsOneDrive Sync Stuck Due to Antivirus File Lock FixHow to Break a Windows Login Loop After Update404 Not Found in Task Scheduler: TroubleshootingWindows Defender Firewall Network Setup GuideConfiguring Task Scheduler to Use a Proxy ServerFix Missing Dependencies in Windows TerminalHow to Fix SSH Host Key Verification Failed for VS Code