Fix Missing Windows Security App Icon or Shortcut
You click the Start menu or search for Windows Security, but the app icon is gone. The shortcut m...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Remote Desktop Connection Refused After a Windows Update
After a recent Windows update, you might see "Remote Desktop Connection Refused"...
How to Fix Windows Defender Version Mismatch on Windows 10
You might see an error saying Windows Defender has a version mismatch, or the app won't open beca...
Fix Outlook 'Permission Denied' Error When Opening Attachments
When you try to open an attachment in Outlook and see a 'permission denied' error, it usually mea...
Configuring Windows Defender for Ubuntu Dual-Boot Systems
If you dual-boot Windows and Ubuntu, Windows Defender may flag Linux partitions, boot files, or t...
Fix 'File in Use by Another Program' Error in Command Prompt
When you try to delete, rename, or move a file in Windows Command Prompt and see the error 'The f...
Topic paths
Quick titles
Teams CXA20001 Troubleshooting GuideFix Permission Denied Error When Updating Windows SearchSystemd Service Setup Checklist for BeginnersHow to Resolve Windows Update Error 0x8024402cpgAdmin Localhost Connection Failure: How to FixWindows 11 Outlook Cache: Where It Is and How to Clear ItFix Task Scheduler Authentication Failed ErrorConfigure Firewall for Network in Windows