Windows Update High CPU Usage Troubleshooting Checklist
If your system feels sluggish and Task Manager shows high CPU usage from TiWorker.exe
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Remote Desktop Rate Limit Error on Windows 10
If you see a message like "The remote computer has exceeded the number of connection attempts it ...
Fix Task Scheduler Sync Issues with Microsoft Account
If your scheduled tasks aren't syncing with your Microsoft account, you might see errors like
Fix Windows Update Error 0x80070570: Permission Denied
When updating Windows, you might see error 0x80070570 with a message about insufficient permissio...
How to Repair Windows Search Database Corruption
If Windows Search stops returning files, emails, or settings, the search index database may be co...
Fix Microsoft Teams SSL Certificate Errors After Update
After a Microsoft Teams update, you might see an error like "There is a problem with your SSL cer...
Topic paths
Quick titles
Windows Defender Connection Refused Registry SolutionFixing Microsoft Teams Dependency ConflictsWindows 11 OneDrive Blank Screen TroubleshootingWindows Search Not Showing Results After Update: FixesHow to Resolve Command Prompt Service Unavailable ErrorTroubleshoot Windows Update Service Startup FailureWindows Defender Sync Not Working on Mac: FixesReduce Windows Terminal CPU Usage with Built-in Tools