
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

If Windows Terminal fails to start or shows an error about invalid configuration, the problem is ...

You click 'Install updates', wait for the progress bar, and then see the dreaded message: 'Undoin...

If you open Windows Security and it sits on a spinning circle or blank screen, you're not alone. ...

You might see the error 'Windows Defender service authentication failed' when trying to open Wind...

If Outlook is running slowly, showing outdated email, or giving sync errors, a corrupted cache is...