Fix 'Windows Not Genuine' Error After Update
After a Windows update, you might see a message that Windows is not genuine, even though it was a...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listMicrosoft Store Connection Refused Troubleshooting Checklist
When Microsoft Store shows 'connection refused' or similar errors, it usually means something is ...
How to Fix Chrome Update Error 12 (Network Issue)
When Chrome fails to update and shows error 12, it usually means the browser could not reach Goog...
Fix Windows Update Error 0x800f081f for Offline Install
You’re trying to install a Windows update manually—maybe a cumulative update or a .cab file—and y...
Fix Windows Defender Sync Issues Across Devices
Windows Defender syncs security settings and scan history across your devices through your Micros...
How to Fix Windows Security 502 Bad Gateway Error
When you open Windows Security and see a “502 Bad Gateway” error, it means the app can’t connect ...
Topic paths
Quick titles
Command Prompt Configuration Guide for New UsersHow to Run Windows Defender Offline Scan When It FailsResolve Java Classpath Conflicts in Command PromptHow to Reinstall Apps When Microsoft Store Is UnavailableFix Permission Denied in Windows DefenderFix Windows Activation Update Error 0x80070002How to Fix Windows Update Error 0x80244022How to Recover the Windows Security Shortcut