
Windows Update High CPU Usage Troubleshooting Checklist
If your system feels sluggish and Task Manager shows high CPU usage from TiWorker.exe

If your system feels sluggish and Task Manager shows high CPU usage from TiWorker.exe

You download a Windows update from the Microsoft Update Catalog, double-click the .msu file, and ...

You may see a Windows Defender error like 'Token expired' or 'The token is expired' in the Window...

If you see "Windows Security service is disabled by group policy" or find that Windows Security i...

When you see 'Windows Search log file not found' in Event Viewer or during indexing, the search i...

You open Chrome, and your CPU spikes to 100%. Or you get a 'Permission Denied' error when trying ...