Fix Windows Defender Service Not Starting (Error 404)
If you see error 404 when trying to start Windows Defender, it usually means the service executab...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Update Module Not Found Sync Issue Fix
When Windows Update stops working and you see 'Module not found' errors during sync, it usually p...
Fix BitLocker Update Error 0x8031004f on Windows
If you see error code 0x8031004f when installing a Windows update that involves BitLocker, it usu...
How to Fix Windows Defender That Keeps Stopping and Starting
If you notice Windows Defender (Microsoft Defender Antivirus) repeatedly stopping and restarting,...
Fix Microsoft Store Setup Stuck on Loading Screen
You open the Microsoft Store app for the first time or after an update, and it sits on a spinning...
Fix Chrome Extension Permission Denied on Windows 10
If you see a 'permission denied' error when installing or using a Chrome extension on Windows 10,...
Topic paths
Quick titles
Troubleshoot PowerShell Blank Screen on Windows 10Troubleshoot Windows Search Permission Error 0x80070005How to Fix pip install SSL Certificate Verify FailedHow to Set Proxy in PowerShell for Internet AccessHow to Fix Chrome Download Issues on WindowsResolve 504 Gateway Timeout in Windows TerminalFix PowerShell Port Already Allocated Permission DeniedHow to Fix Teams Dependency Conflicts