How to Fix Windows Activation Error 0xc004c003 After Motherboard Swap
After replacing your motherboard, Windows may show activation error 0xc004c003. This means the ac...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listMicrosoft Store Restore Checklist for Developers
When developing apps for the Microsoft Store, you may encounter situations where apps fail to ins...
Fix Microsoft Teams Connection Timeout on Windows 10
If you see 'connection timed out' or 'we couldn't connect' in Microsoft Teams on Windows 10, the ...
Fix OneDrive Sync Error 0x80070020: File Locked
OneDrive sync error 0x80070020 typically appears when a file is locked by another application (e....
Fix Microsoft Teams File Locked Not Opening
When you try to open a file in Microsoft Teams and get a “file locked” or “this file is locked fo...
Fix Windows Security Virus Scan Stuck at 99%
You run a full virus scan in Windows Security, and it gets stuck at 99% for minutes or hours. Thi...
Topic paths
Quick titles
Beginner's Guide to Windows Defender Problems and FixesFix Windows Defender Service Not Starting After UpdateHow to Fix 502 Bad Gateway in Windows SearchHow to Fix Windows Terminal Version MismatchTroubleshoot Windows Search Authentication IssueHow to Fix Windows Terminal Connection Timeout ErrorsWindows 10 Defender Connection Refused Error TroubleshootingFix Windows Defender Constantly Stopping and Starting