How to Fix 'File Locked by System' in Windows Defender
If you see an error like "File locked by system" when running a Windows Defender scan or trying t...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Windows Security Error 0x80073b01
You may see error 0x80073b01 when opening Windows Security or trying to use its features. It usua...
Fix PowerShell Authentication Token Expired in Automation Scripts
When running PowerShell automation scripts that interact with cloud services or APIs, you may enc...
Fix Microsoft Store DNS Error After Windows Update
After a Windows update, you might see a DNS error when opening Microsoft Store. The app may fail ...
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 ...
How to Fix Windows Terminal Backup Not Working
If you've tried to back up your Windows Terminal settings and run into errors or missing data, yo...
Topic paths
Quick titles
Reduce Antimalware Service Executable CPU LoadTroubleshooting Permission Denied on Windows 10Resolve Windows Search Access Denied Error 0x80070005PowerShell Cannot Connect to SharePoint Online FixWindows Defender Real-Time Protection Won't Turn On: FixesHow to Fix DNS Permission Denied in Windows DefenderFix 'npm command not found' on LinuxHow to Turn On Windows Defender After Group Policy Block