
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

When Windows updates fail to sync between your devices—for example, a feature update installed on...

You open Microsoft Store and see an error message like “Check your connection” or the store fails...

You open Command Prompt to run Windows Update commands like wuauclt /detectnow or

When you can't reach a website but your internet connection seems fine, DNS errors are a common c...

If you see an "authentication failed" error in Windows Search, it usually means the service can't...