Windows 10: Explorer CPU usage at 100%, slowing entire system down [details in text]

Discus and support Explorer CPU usage at 100%, slowing entire system down [details in text] in Windows 10 Ask Insider to solve the problem; I am having major issues with Windows Explorer since the last Win 10 update. I have been trying to transfer contents of folders that a few... Discussion in 'Windows 10 Ask Insider' started by /u/Chicken_Spanker, Nov 22, 2019.

  1. Explorer CPU usage at 100%, slowing entire system down [details in text]


    I am having major issues with Windows Explorer since the last Win 10 update. I have been trying to transfer contents of folders that a few hundred/thousand picture files. These are small in size and under 200k. Picking up and dragging the folder use to take about 2 minutes max.

    Since the latest update, explorer has been slowing waaaaay down. A transfer of only a couple of hundred files can take 15 minute, larger size 20 minutes plus.

    During the process CPU in file manager is running at 99-100% usage and slowing the system down so badly I can't even move the mouse.

    Any suggestions? Before I start I should say I have run malware checks and nothing shows up. Nor is there any running program in Details on Task Manager that seems to be consuming anything more than 250,000 k

    submitted by /u/Chicken_Spanker
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    :)
     
    /u/Chicken_Spanker, Nov 22, 2019
    #1

  2. 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, Nov 22, 2019
    #2
  3. CPU Usage 100%

    Hello,

    First time posting here so hopefully someone can help me out.

    Today out of the blue my CPU usage has gone up to 100% according to task manager. The strange part is according to the detailed section the System Idle task is taking up 90-99% CPU which is normal from what I have read. So I'm confused about why the main
    page is showing 100% all the sudden.

    According to OpenHardwareMonitor CPU usage is only 1-5%.

    The main cause that I noticed is when I launched the program Bandicam is when I noticed this issue. Although I'm not sure if Bandicam is the cause.

    One last note is my fans are running pretty high. So I highly doubt that 90-99% of my CPU is idle.

    I have my system shut down currently to see if after leaving it off for a while if the system will cool and fans won't be running so high. But I doubt that will fix the 100% CPU problem.

    Any advice?

    Thanks so much in advance!!
     
    fishcharlie, Nov 22, 2019
    #3
  4. Wysiwig Win User

    Explorer CPU usage at 100%, slowing entire system down [details in text]

    cpu usage at 100%

    CPU usage at 100% from start up for no apparently good reason. Service Host appears to be the problem but I cant narrow it down more than that at present.

    Any suggestions?

    I am using Windows 10 full release version 64 bit.
     
    Wysiwig, Nov 22, 2019
    #4
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Explorer CPU usage at 100%, slowing entire system down [details in text]

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