Windows 10: System process High Disk or CPU usage on Windows 10

Discus and support System process High Disk or CPU usage on Windows 10 in Windows 10 News to solve the problem; The System process can be viewed as a special kind of process that hosts threads that only run in kernel mode. Its related file name is ntoskrnl.exe... Discussion in 'Windows 10 News' started by WinClub, Apr 7, 2021.

  1. WINCLUB
    WinClub New Member

    System process High Disk or CPU usage on Windows 10


    The System process can be viewed as a special kind of process that hosts threads that only run in kernel mode. Its related file name is ntoskrnl.exe and it is located in C:\Windows\System32\ folder. It is responsible for various system services such as hardware abstraction, process and memory management, etc. At times, the System process […]

    This article System process High Disk or CPU usage on Windows 10 first appeared on TheWindowsClub.com.

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    WinClub, Apr 7, 2021
    #1
  2. KAPIL ARYA MVP
    Kapil Arya MVP Win User

    system process high cpu usage

    Hello,

    To fix high CPU usage issue, please refer these steps:

    Try to identify the process creating this issue.

    Download Process Explorer from Microsoft:

    Process Explorer - Windows Sysinternals

    Run the tool then select the system process, right-click and select Properties.

    Switch to the Threads tab. This will show which file is using the excessive CPU usage, from which you can then attempt to diagnose it.

    Also refer: [FIX] Windows 10 High CPU Usage Problem

    Let us know if this helps!

    Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.
     
    Kapil Arya MVP, Apr 7, 2021
    #2
  3. DEADALOS
    deadalos Win User
    "System" process with high CPU usage

    I have exactly the same issue (high CPU usage) on a brand new HP ProBook 440 G5 (i7-8550U, pre-installed Win 10 Pro).

    I am pretty sure that there is a problem with audio drivers when the computer wakes up from a sleep mode. I first observed that process flow.exe (audio bloatware provided by HP/Conexant) was consuming (after waking up) ~10–15 % CPU. Here's what I did:

    • I have updated Windows to 1709, build 16229.251 and installed all updates --> Nothing has changed.
    • I have updated BIOS to the latest version provided by HP. --> Nothing has changed.
    • I have run Windows troubleshooting and HP Support Assistant checks --> No problems found, nothing has changed
    • I have manually updated Conexant ISST Audio Drivers (via Device Manager -> Update drivers). Windows installed a newer version. -->
      CPU usage by flow.exe has disappeared, but process called System in thread ACPI.sys+0x21cb0 started consuming ~20 % CPU.
    • I have uninstalled all Conexant software&drivers and manually installed generic High Definition Audio Device drivers provided by Microsoft (Driver Date: 21.02.2018). --> ACPI.sys+0x21cb0 still consumes ~20 % CPU.

    Same issues are discussed in these threads on HP site:


    The result is I cannot use sleep mode (as advised by this post:
    https://h30434.www3.hp.com/t5/Business-Notebooks/ProBook-450-with-high-CPU-usage/m-p/6611446/highlight/true#M149605    ).
     
    deadalos, Apr 7, 2021
    #3
  4. FREDERIK LONG
    Frederik Long Win User

    System process High Disk or CPU usage on Windows 10

    System Idle Process High cpu usage

    What are the processes that cause HIGH CPU usage?
     
    Frederik Long, Apr 7, 2021
    #4
Thema:

System process High Disk or CPU usage on Windows 10

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