Enable Windows Security Manually When It Fails to Start
If Windows Security (formerly Windows Defender) fails to start, you may see an error like "This a...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Windows Defender Not Opening
When you click Windows Defender and nothing happens, or it opens and immediately closes, it's oft...
Fix Windows Update Stuck at 100% Pending Install
You've waited for a Windows update to finish, but it's stuck at 100% with a 'Pending install' mes...
Fix 'Module Not Found' Error in Chrome on Windows 10
If you see a 'module not found' error in Chrome on Windows 10, it usually means Chrome cannot loa...
Fix Windows Terminal ‘Run as Administrator’ Permission Denied Error
You click 'Run as administrator' on Windows Terminal, but instead of a UAC prompt you get an erro...
Fix Microsoft Store Authentication Token Expired Error
When you open Microsoft Store and see an error like 'Authentication token expired' or 'Your authe...
Topic paths
Quick titles
Fix Windows Search Not Working (Error 404) – Practical GuideFix Windows Activation File Locked ErrorFix 'Artisan Command Not Found' After Composer InstallWindows 10 Microsoft Store Network Error FixResolve 'Not Recognized' for Windows DefenderTask Scheduler File Locked Error GuideHow to Restart Windows Defender ServiceResolve Access Denied When Writing PowerShell Logs