Fix 'Windows Activation Service Not Starting' Permission Denied
When you see "Windows Activation Service not starting" with a "permission denied" error, the serv...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Outlook Taking Too Long to Open Emails
If you click an email in Outlook and it takes several seconds or more to open, you're not alone. ...
Fix Windows Update Auto Start Failed to Start
You might see an error saying 'Windows Update auto start failed to start' when you try to check f...
How to Fix BitLocker Proxy Error
If you see a BitLocker proxy error when trying to enable or manage BitLocker, it usually means th...
How to Use the OneDrive Sync Dependency Conflict Repair Tool
If OneDrive stops syncing with errors like "Action needed" or "Sync pending", a dependency confli...
Fix Windows Security File Locked Error 0x80070020
You try to move, delete, or rename a file, and Windows shows error 0x80070020: "The file is locke...
Topic paths
Quick titles
Windows Security Error 0x80073b01 TroubleshootingChrome Corrupted Profile Fix GuideHow to Restore OneDrive Sync After Windows UpdateWindows Security Failed to Load Permissions: Fix GuideHow to Set Up PowerShell for BeginnersRemote Desktop Command Not Found FixDISM Error 0x80073712 Troubleshooting GuideStop Windows Security Asking for PIN Repeatedly