Fix Windows Security Service Unavailable in Windows 11
You open Windows Security and see a red banner: 'Security service unavailable. Restart your devic...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Microsoft Store DNS Error on Wired Connection
If you see a DNS error in Microsoft Store while on a wired connection, the issue is usually with ...
Fix Outlook Not Opening After a Windows Update
After a Windows update, Outlook may fail to start—showing no error, a loading spinner that never ...
Fix Git Push Rejected: Non-Fast-Forward vs Fast-Forward
When you run git push and see an error like ! [rejected] main -> main (non-fas...
Fix Windows Security Proxy Error After Update
After a Windows update, you might see a proxy error in Windows Security (formerly Windows Defende...
Fix Task Scheduler Port Already Allocated Error
When you see 'port already allocated' in Task Scheduler, it usually means a scheduled task is try...
Topic paths
Quick titles
Remote Desktop Connection Timeout Due to Firewall: FixesHow to Clear Browser Cache to Fix Chrome 504 TimeoutTroubleshoot GitHub Actions Permission Denied for GitFix Windows 10 Task Scheduler High Memory UsageHow to Unlock Files for Windows UpdateHow to Fix Git Pull Merge Conflicts: Error Code 1Why Remote Desktop Lags Only on One Computer and How to Fix ItHow to Get Windows Security Back After Update