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 listMicrosoft Store Not Working After Update: Troubleshooting Checklist
After a Windows update, the Microsoft Store may fail to open, load slowly, or display errors like...
Fix npm EACCES Errors with NVM: Step-by-Step Guide
If you see EACCES: permission denied when running npm install -g or oth...
Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...
Fix PowerShell 504 Gateway Timeout via Proxy Settings
When PowerShell commands return a 504 Gateway Timeout, it often means the proxy ...
Fix Microsoft Store Service Unavailable WSReset Error
When you open Microsoft Store and see 'Service Unavailable' or an error about the store not respo...
Topic paths
Quick titles
Fixing Windows Terminal Dependency Conflict and Permission Denied ErrorsWindows Store Download Stuck? Try These FixesResolve Windows Defender Auto-Off ErrorFix 'Connection Refused' Error in CMD on Windows 10How to Fix a Chrome Extension That Keeps Crashing or Stopped WorkingResolve Microsoft Store Error 0x80070424 in Windows 11How to Fix Outlook DNS Error: Step-by-Step GuideFix PowerShell Module Not Found Import Errors