Forum Discussion
One core (out of 20) always running at 100% since 2023-12 update
I installed the 2023-12 update a few days ago and since then one core (out of 20) runs at 100% all the time. This does not happen if I boot into safe mode.
I don't see a process with either Task Manage or Performance Monitor that could be causing the 100% usage for one core. It's not always the same core but it is either core 10, 11 or 12.
I do see the core running at 100% in graphs produced by Resource Monitor that show usage for each core. I've run numerous different virus scans including ones for root kits and none of the them find anything questionable.
The windows 11 is build is 22631.2861.
Anybody have an idea on what's going on or how to find the process that is causing the 100% usage?
14 Replies
- Try performing Clean Boot and see if the problem persists?
Have a look at:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd
If not, you may enable services one by one to identify which one causing this problem.Same situation following a clean boot, one core running at 100% all the time.
Not there following a boot into safe mode.
- Try uninstall the update which causing this issue and see if the problem persists?
Have a look at:
https://support.microsoft.com/en-us/windows/how-to-uninstall-a-windows-update-c77b8f9b-e4dc-4e9f-a803-fdec12e59fb0
