Fix Windows Activation After Hardware Change
If you recently upgraded your PC's motherboard, CPU, or hard drive and now see “Windows is not ac...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Chrome Profile DNS Issues After Update
After a Chrome update, some users find that DNS resolution stops working only within a specific p...
Fix OneDrive File Locked by Office Document Sync Issue
You open an Office file from OneDrive and see an error that the file is locked or in use by anoth...
Checklist for Fixing Windows Security Startup Failure
When Windows Security (formerly Windows Defender) fails to start at boot, you may see an error li...
Windows Defender Missing from Settings After Update: Fix
After a Windows update, you might open Settings and find that Windows Defender (now called Micros...
Fix Windows Activation Error 0xc004f074
When you see error 0xc004f074 during Windows activation, it usually means the system clock is out...
Topic paths
Quick titles
How to Fix Windows Activation Proxy ErrorFix Microphone Permission Denied in Microsoft TeamsReset Windows Search Index via Command PromptReset Microsoft Store Configuration: Step-by-StepHow to Fix Windows Defender Greyed Out in SettingsBitLocker Cannot Access Drive Error GuideWindows Terminal Invalid Config: How to FixTroubleshooting OneDrive Error Code 0x8004de40