TiWorker.exe - Very High CPU Usage

Solution 1:

So it seems, that Microsoft published an update in 2013, introducing some new features into the Windows Update engine, including compression of old files. The TIWorker.exe will start to compress files, but the SFC (System File Checker) detects the modified files and restores them back to how they were, causing the TIWorker.exe to crash (you'll see the Windows Error Reporting in the task manager eating all you resources).

It seems, that running the following command on an elevated command prompt fixes the issue:

DISM /online /cleanup-image /restorehealth

I can't test it on my machine as I installed my machine from scratch when I encountered that issue, but the approach looks really promising.

The original source mentioning this solution can be found here.

Solution 2:

I am currently experiencing the same feeling. Since we share a common goal (be able to work), I suggest you do the same as I did:

1 - Install and run Microsoft's Process Explorer (which I love because it shows historical responsabilities) using elevated privileges

2 - Right click under TiWorker.exe and set its priority to Background or, temporarily, suspend it (this will release your system immediately).