Windows 10: my pc's cpu goes to 100% even when idle

Discus and support my pc's cpu goes to 100% even when idle in Windows 10 Software and Apps to solve the problem; the task manager doesn't add up to 100% while it still says 100%... Discussion in 'Windows 10 Software and Apps' started by Jonas Jonaitis, May 4, 2025 at 5:12 AM.

  1. JONAS JONAITIS
    Jonas Jonaitis Win User

    my pc's cpu goes to 100% even when idle


    the task manager doesn't add up to 100% while it still says 100%

    :)
     
    Jonas Jonaitis, May 4, 2025 at 5:12 AM
    #1
  2. MAXATV
    maxatv Win User

    CPU usage 100% but system idle process says otherwise

    Hello, So I was copying a large group of files (400 gigs) to an external drive, it was about 150 gigs in when the PC crashed ( i believe due to MSI usb speed up), i've since removed the MSI program but CPU usage stays at 100% from the moment the PC turns on, however system idle process shows it's using most everything which is good, and PC perfomance is normal and unlike if CPU usage was actually 100%, but I can't figure out how to fix this, any suggestions or tips would be so helpful, I've attached screen shots showing 100% usage but every program running doesn't add up to near that and system idle showing everything mostly idle. Thanks!!!!!


    my pc's cpu goes to 100% even when idle 117978d1485975997t-cpu-usage-100-but-system-idle-process-says-otherwise-highcpujan2017.png

    my pc's cpu goes to 100% even when idle 117979d1485975997t-cpu-usage-100-but-system-idle-process-says-otherwise-highcpu2jan2017.png
     
    maxatv, May 4, 2025 at 5:17 AM
    #2
  3. NAVMANNIKS
    Navmanniks Win User
    CPU Goes up to 100% and pc gets really hot


    Hi ,I have lapton Asus x550cl and recently my pc started lagging. Laptop is ~1year old
    The fan sounds really loud ,pc get's really hot can't really do anything it's too slow, when i unplug my charger then pc lags so hard that it is almost unusable
    Any suggestions?
    Here some screenshots

    my pc's cpu goes to 100% even when idle 47359d1485959382t-cpu-goes-up-100-pc-gets-really-hot-whparrs.png

    my pc's cpu goes to 100% even when idle 47360d1485959382t-cpu-goes-up-100-pc-gets-really-hot-wevuus4.png

    my pc's cpu goes to 100% even when idle 47361d1485959382t-cpu-goes-up-100-pc-gets-really-hot-9i0q3cx.png


    Sorry for my bad English.
     
    Navmanniks, May 4, 2025 at 5:17 AM
    #3
  4. OTTOFLUDER
    OttoFluder Win User

    my pc's cpu goes to 100% even when idle

    CPU Usage 100% and idle process is 100%

    My CPU usage shows permanently 100% in task manager (in "Processes" tab) even my system idle process (in "Details" tab) is almost 100% and the CPU runs hot - fan is permanently on - CPU speed (in "Performance" tab) is always a bit above maximum speed!!!
    McAfee doen't show any virus problem. HP Spectre.
     
    OttoFluder, May 4, 2025 at 5:17 AM
    #4
Thema:

my pc's cpu goes to 100% even when idle

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