Fix Windows Defender File Locked Permission Denied Error
You try to open, edit, or delete a file and get an error like File locked by Windows Defend...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWindows Security Configuration Checklist
If you're setting up a new Windows machine or reviewing an existing one, a security checklist hel...
How to Enable Windows Security Auto-Start in Windows 11
If you notice that Windows Security isn't opening automatically when you start Windows 11, or if ...
Windows Security Migration Rollback Procedure
After migrating security settings (e.g., Windows Defender policies, BitLocker configurations, or ...
How to Fix Slow Windows Defender Scan Speed
If your Windows Defender (Microsoft Defender Antivirus) scan is taking much longer than usual—som...
How to Fix Git Permission Denied (publickey) Error
When you try to clone or push to a remote Git repository over SSH and see Permission denied...
Topic paths
Quick titles
How to Fix Windows Defender Using Log FilesWindows Update 404 Error: How to Fixnpm install ENOENT: Missing package.json FixFix Windows Security Real-Time Protection OffWindows Defender Port Already in Use FixWindows Defender Audit Log Setup for TroubleshootingEnable and Run MpCmdRun for Windows DefenderEnable Windows Defender in Windows 10