Fix Windows Activation Server Not Available Error
When you see the message "Windows activation server is not available" while trying to activate Wi...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Microsoft Store Login Loop on Windows 10
You're trying to sign into the Microsoft Store on Windows 10, but it keeps asking you to sign in ...
How to Fix Command Prompt Auto Start Not Working
If you've set Command Prompt to start automatically on login—via the Startup folder, Registry, or...
How to Fix Outlook Service Unavailable in Safe Mode
When Outlook shows 'service unavailable' even after you start it in safe mode, the problem is oft...
Fix Command Prompt Token Expired After Login
You log into a system, open Command Prompt, and immediately see an error that your authentication...
Fix Task Scheduler Access Denied Error in Windows 10
When you try to create, modify, or run a task in Windows 10 Task Scheduler, you might see an 'Acc...
Topic paths
Quick titles
Fix Microsoft Store Issues for New User on Windows 11Clearing PowerShell Console Cache and HistoryGit Push Rejected Non Fast Forward FixOneDrive Reset Not Saving? Here's the FixFirefox Profile Lost Sync Data? Fix and RestoreFix Missing Windows Security App Icon or ShortcutFix Windows Security Service Not StartingFix Windows Security Service Not Running for Antivirus