
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 try to delete, rename, or move a file and get the error “The action can’t be completed becaus...

You open Windows Security but see only a blank white or gray screen. The interface fails to load,...

You start your PC, see the Windows logo, then it goes black with a spinning circle that never end...

You try to open Windows Defender Security Center or run a scan, but get an 'Access Denied' error....

You turn off real-time protection in Windows Defender, but scans still run. This can be confusing...