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I have a laptop running Windows 8. Although it originally ran well, it started having very bad performance issues. I decided to perform some research into the topic. Opening up Task Manager, I discovered a process called TiWorker.exe (I think this handles update checking) takes up ~50% of my CPU for the first hour my computer is on, then shuts down.

This causes my computer to have horrible load times an very bad performance. My CPU usage hovers between 90-100%, which is unacceptable. To put this into perspective, my CPU hovers between 0-20% and Linux, and the startup is quick. I understand that Linux has much better performance than Windows anyway, but this is excessive.

Is there any way I can cause TiWorker to take up less CPU? I really need my computer to be fast (at least, more so than a snail). Thanks for any help. I really appreciate it.

Here is my xperf etl file: https://www.dropbox.com/s/6le4j7ye9on0k79/HighCPUUsage.etl

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follow this when you have the TiWorker.exe issue again and upload the trace file: pastebin.com/pgE11HRD –  magicandre1981 Nov 27 '13 at 4:45
the trace doesn't show any CPU usage by TiWorker.exe. Capture a trace when you have the usage again. –  magicandre1981 Nov 27 '13 at 17:40

2 Answers 2

Have you tried the following fix from Microsoft?


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Could you please give some information about what the fix is? Just providing a link is not recommended here. –  Chenmunka Nov 27 '13 at 15:48
The download link is broken for me. –  dillmo Nov 27 '13 at 16:47
the update is already superseded and replaced with a newer version. –  magicandre1981 Nov 27 '13 at 17:21

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).

enter image description here

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