
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 open the Microsoft Store and it hangs on the loading screen—spinning circle, no content. This...

You click Windows Terminal, the icon bounces, and then nothing happens. Or it flashes and disappe...

When you try to download or update an app from the Microsoft Store, you might see error 0x80073cf...

When you open Windows Defender (Microsoft Defender Antivirus) and see a connection refused error ...

If you type a file name into the Windows Search box and nothing shows up, or results are missing ...