Windows 10: Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core

Discus and support Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core in Windows 10 Performance & Maintenance to solve the problem; Hello, I have the following issue on my laptop, a Dell XPS 15 9570, all latest drivers and bios, latest Windows 10 1903, that randomly, maybe once per... Discussion in 'Windows 10 Performance & Maintenance' started by gorgor, Jul 16, 2019.

  1. gorgor Win User

    Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core


    Hello,

    I have the following issue on my laptop, a Dell XPS 15 9570, all latest drivers and bios, latest Windows 10 1903, that randomly, maybe once per week or less, Ntoskrnl.exe (System) randomly gets stuck at 99% cpu on one core, and stays until I reboot Windows. The 99% load on one core gets shifted all the time by Windows over all cores of the CPU, maybe each 1-2 seconds it gets shifted to another core.

    Is there any way how to find out, why this happens? I am not sure if this is just since 1903 or was already happening under 1803.

    :)
     
    gorgor, Jul 16, 2019
    #1

  2. CPU at 99%

    Hello,

    To better assist you with your concern, we would like to ask you a few questions:

    • When you start your computer, is the CPU usage already at 99%?
    • Do you have programs on your startup items?

    Regards.
     
    Stephanie Sal, Jul 16, 2019
    #2
  3. BSOD ntoskrnl..exe+1b35e0

    Hi, KirbyBakken

    My name is Maritza and I am an Independent Advisor. I would be happy to help you today.

    Check this link, I hope it helps

    https://www.thewindowsclub.com/ntoskrnl-exe-hig...

    Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised
    on the site before you decide to download and install it.

    Let us know if these steps help you to resolve the issue.
     
    MaritzaCapiro, Jul 16, 2019
    #3
  4. niconpl Win User

    Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core

    ntoskrnl High CPU usage


    Hello Guys , im strugling for few days with this and no luck.

    ntoskrnl is constantly using 1 of cores as shown below.



    Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core [​IMG]


    Process name is System and compressed memory, and is pointing to ntoskrnl



    Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core [​IMG]


    Im using laptop Samsung np350v5c-s0dpl
    i7 3630qm
    8gm ram
    Intel Hd graphics 4000
    Amd Radeon 7600M
    -----------------------------------

    What's more interesting , this started after i swaped my DVD drive with HDD.. when i run only with SSD in mail slot it;s normal.
    Already try clean install but still the same.
    I can share WPT on PM
     
    niconpl, Jul 16, 2019
    #4
Thema:

Ntoskrnl.exe (System) randomly stuck at 99% cpu on one CPU core

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