1.    17 Oct 2016 #1
    Join Date : Oct 2016
    Posts : 2
    Windows 10 Home 64bit

    'System' process high CPU usage


    Since the past 3-4 days the process called 'System' has been constantly using approximately 35% of my CPU. The usage is pretty much constant all the time. Below you can find screenshots from task manager, resource monitor and process explorer.
    In the past I've never seen this, leaving the PC idle dropped the usage down to almost zero, now the CPU is running at full clock 24/7, heating it up ~55C, which is mildly undesirable.

    Attempts done so far to fix the issue, none has worked:
    - Waiting. I leave the PC to run overnight, but it does not seem to help it.
    - Restarting, done multiple times, no effect whatsoever.
    - sfc /scannow, nothing found.
    - Full virus scan, nothing found.
    - The update settings has been set already to not to receive from other pc's. All updates are installed what windows update has to offer.

    PC specs:
    Acer VN7 laptop, running Win 10 Home 64bit. HW: i5-6300HQ, 16GB, GTX960M. All drivers up to date.

    Click image for larger version. 

Name:	system2.PNG 
Views:	3 
Size:	23.7 KB 
ID:	106372Click image for larger version. 

Name:	system1.PNG 
Views:	6 
Size:	7.9 KB 
ID:	106373Click image for larger version. 

Name:	system3.PNG 
Views:	5 
Size:	16.5 KB 
ID:	106374
      My ComputerSystem Spec
  2.    17 Oct 2016 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 11,055
    Win 10 Pro (1703)

    Hi, you'll need to do some analysis e.g.
    High CPU utilization by process

    You can also try a process of elimination - does this happen after a clean boot/in safe mode?
    If you can find a situation when it does not occur you may be able to work from there.
      My ComputerSystem Spec
  3.    23 Oct 2016 #3
    Join Date : Oct 2016
    Posts : 2
    Windows 10 Home 64bit
    Thread Starter

    The issue has seemingly self-repaired, at least for now. I tried to reinstall all the drivers I could, but nothing helped. I waited for another X days due to not having much clue what to do. Eventually I found that the Acer care center or whatever was offering 2 updates to the thunderbolt drivers, which I tried to install. The first one installed ok, but the second one keeps failing with the message "part1 must be installed," even it is. After that failed attempt and several more restarts, the situation is back to normal. For now, that is.
      My ComputerSystem Spec


Similar Threads
Thread Forum
High CPU usage from network process, sound randomly glitches
Hi. Recently i've noticed that my CPU usage on idle is around 50% (which is high). I've found a process that is network related called "Service Host: Network Service (5)". It is currently using aaround 25% of my CPU. I can end it, but then it just...
Performance & Maintenance
High CPU usage: Service Host: DCOM Server Process Launcher
So for quite a while now, I have been having issues with my pc. After using it for a couple of hours (playing games, browsing the internet, using it for university work, etc.) its performance is noticably lower than just after startup. Task...
Performance & Maintenance
Windows Image Acquisition process - high CPU usage
Hello, from some reason, a process called "Windows Image Acquisition (WIA), which I've never seen before is running and using about 30% CPU. I read in MSDN that "Windows Image Acquisition (WIA) is the still image acquisition platform in the...
Performance & Maintenance
NT Kernel & System High RAM Usage
Hello, This is my first time i post on TenForums. Here is my laptop specification: - HP Pavilion g4 - Intel Core i3 2.2 GHz - Radeon 6470m (but somehow got 7400 driver and worked) plus Intel HD 3000 - Windows 10 of course - 2 gigs ram -...
Performance & Maintenance
System process - high CPU usage after some time
Hi everyone, in Task Manager, the "System" sometimes starts eating 14~20% CPU and that persists until a reboot. "System interrupts" (which is a pseudo process?) seems to do the same. It doesn't happen from boot, and I don't know what triggers...
Performance & Maintenance
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 21:14.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App

Windows 10 Forums