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 listWindows Update Failed to Install Manually: Practical Fixes
You download a Windows update from the Microsoft Update Catalog, double-click the .msu file, and ...
Fix BitLocker Service Not Starting Error 0x80070005
When you try to start the BitLocker Drive Encryption Service and see error 0x80070005 (Access Den...
Microsoft Teams Service Unavailable for a Specific User: Fix
If a single user in your organization sees a 'Service Unavailable' error in Microsoft Teams while...
Fix Outlook Rate Limit Exceeded Error (Code Explanation)
If you use Outlook with add-ins, scripts, or third-party integrations, you might see an error lik...
Fix Windows Defender Threat Service Stopped After Update
After a Windows Update, you might see a yellow warning in Windows Security saying "Threat service...
Topic paths
Quick titles
Fix Windows Terminal Service Unavailable After UpdateHow to Fix Defender Definition Sync MismatchChrome Profile Sync Not Working: Post-Crash FixFix Microsoft Teams Service Unavailable Error for Individual UserMicrosoft Store 504 Gateway Timeout TroubleshootingHow to Fix Dependency Conflicts in Command Prompt SetupChrome Not Releasing RAM After Closing Tabs: Practical FixesHow to Stop PowerShell Crashing on Startup