Hello
Ntoskrnl.exe is a system process, and it’s also known as the “Windows NT Operating System Kernel Executable”. It’s related to a kernel, which is a piece of software that connects hardware and software. Many different Windows services depend on this kernel to function efficiently.
You can try the following methods to fix the problem of high CPU usage:
- Update the driver
- Use DISM /Online /Cleanup-Image /RestoreHealth and sfc /scannow commands to repair corrupted system files
- Use the CHKDSK command to check for disk errors
https://softwarekeep.com/help-center/what-is-ntoskrnl-exe-how-to-fix-it-ntoskrnl-exe
If these actions do not fix the issue, it is recommended to use the perfmon tool to collect specific information on high CPU usage:
https://help.tableau.com/current/server/en-us/perf_collect_perfmon.htm
Best Regards,
Wesley Li