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 listHow to Fix PowerShell 502 Bad Gateway Error
When you run a PowerShell command that calls a web service (like Invoke-RestMethod o...
Fix OpenVPN Permission Denied on Tun Device
When running OpenVPN, you might see an error like ERROR: Cannot open TUN/TAP dev /dev/net/t...
How to Fix Microsoft Store Error 0x80072efd on Windows 10
When you open Microsoft Store on Windows 10 and see error code 0x80072efd, the app usually fails ...
Fix Nginx Configuration Syntax Error on Line 22
When running nginx -t and seeing 'syntax error' on line 22, the config file won't lo...
Chrome Browser Troubleshooting Checklist for Beginners
Chrome can suddenly stop working—pages won't load, the browser crashes, or it runs slowly. This c...
Topic paths
Quick titles
How to Fix Command Prompt Auto Start Not WorkingWindows Terminal Configuration Reset GuideTroubleshoot PowerShell Permission DeniedChrome Service Unavailable: Fix Sync Not WorkingHow to Fix Teams Crashing on macOSBitLocker 0x8031004a Troubleshooting GuideWindows 10 Chrome Remote Desktop Setup StepsFix Microsoft Teams Screen Sharing Not Working