
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 you see repeated credential prompts or Windows Security not saving settings, a cache sync issu...

If you see 'Windows Defender module not found' when trying to open Windows Security or run a scan...

You open Windows Search, type a query, and instead of results you see a 504 gateway timeout error...

When you see 'Outlook data file access denied' on Windows 10, Outlook cannot read your .pst or .o...

You open Outlook and see an error about a dependency conflict—maybe a missing DLL or a version mi...