Windows 10: System/ntoskrnl.exe high cpu usage

Ntoskrnl.exe is using 20% cpu constantly. It brings my battery down to 1 hour from 10 hours. I’ve had this issue before and reinstalled windows but it has come back. I suspect it’s a third party app such as a Microsoft flight sim or another game causing this issue. The high cpu usage by ntoskrnl stops when an app using the Rtx 3050 gpu starts. My laptop usually runs at 2% cpu usage on idle.Gpu usage occasionally peaks to 20% My laptop is warm when idle because of this issue.This is driving me crazy because I’ve this issue keeps coming up every month or so.Thanks.System specs: Acer swift X SFX1

:)

 

high cpu usage of ntoskrnl.exe HvilsHypervisor

Hi Sangmin. I'm Greg, 10 years awarded Windows MVP, here to help you.

1) Try these fixes for known issue of high CPU usage due to ntoskrnl.exe:

https://www.makeuseof.com/tag/fix-high-cpu-usag...

https://helpdeskgeek.com/help-desk/why-ntoskrnl...

https://appuals.com/high-cpu-or-disk-usage-by-n...

(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)

https://techcult.com/fix-ntoskrnl-exe-high-cpu-...

https://windowsreport.com/ntoskrnl-exe-high-cpu...

(Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)

2) Go over Windows using this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done: http://answers.microsoft.com/en-us/windows/wiki...

Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files, and also Step 16 to test a new Local Admin account to replace yours which may be corrupted. Then if necessary continue with the other steps to go over your install most thoroughly.

3) Update your drivers and BIOS/UEFI firmware from the PC or motherboard maker's Support Downloads web page, using the full model number, Serial Number or Dell Service Tag on sticker. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start button. Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.

Updating drivers from the Device Manager or Windows Update is rarely enough. The most basic thing we need to learn to maintain a PC is keep the latest manufacturer's drivers installed from their Support Downloads web page. Everything else depends on this.

4) If nothing else works then do a Repair Install, by installing Media Creation Tool, open tool and choose to Upgrade Now. This reinstalls Windows while keeping files, programs and most settings in place, is the most stable method to advance to the latest version, and solves most problems. Tutorial here: https://www.tomshardware.com/how-to/fix-windows...

Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.

______________________________________________

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

 

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.






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






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

 

System (ntoskrnl) high cpu usage

Hi,

I am Vinu, an Independent Advisor and a Microsoft user like you. I will try to help you with this issue.

Can you try all the four methods mentioned here one by one:
https://www.drivereasy.com/knowledge/system-nto...

Method 1: Disable Windows Search Service

Method 2: Check Incompatible Programs

Method 3: Run Command

Method 4: Use Windows Performance Toolkit to Diagnose

Please don't install their third party software. Only try the 4 manual debugging options mentioned there. Let me know if that helps in any way.

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly
research any product advertised on the sites before you decide to download and install it.