Windows 10: CPU Usage Constantly Hitting 100%

Discus and support CPU Usage Constantly Hitting 100% in Windows 10 Performance & Maintenance to solve the problem; Hi everyone! I have a Lenovo Thinkpad T450s with iCore 7, 12GB Ram, 512GB SSD, and Windows 10 Pro. The laptop was working flawlessly until a few days... Discussion in 'Windows 10 Performance & Maintenance' started by vf1010, Sep 5, 2018.

  1. vf1010 Win User

    CPU Usage Constantly Hitting 100%


    Hi everyone!

    I have a Lenovo Thinkpad T450s with iCore 7, 12GB Ram, 512GB SSD, and Windows 10 Pro. The laptop was working flawlessly until a few days ago...

    All of the sudden the machine has slowed significantly, and I whenever I open a browser (no matter whether it's MS Edge or Chrome), the CPU process hit 100%. This happens all of the time now, rendering my laptop literally unusable.

    I've uninstalled and reinstalled Chrome, changed a million settings in Windows 10, scanned for viruses and malware (found none), and more. I am at a loss...

    Would you have any advice for me? I would really appreciate it!

    Best wishes,
    Valerie

    :)
     
    vf1010, Sep 5, 2018
    #1

  2. CPU Usage Constantly at 100%


    So I tried downloading the hotfix here Z97-A/USB 3.1 | Motherboards | Asus but it didn't do any good.

    I did selective startup via Diagnostic Startup in System Configuration, and there were no problems in CPU usage when I did that. Resumed to normal startup, same issues.

    Startup programs: Just Dropbox, OneDrive, and AutoHotKey.


    CPU Usage Constantly Hitting 100% [​IMG]


    Typical resource hogs:


    CPU Usage Constantly Hitting 100% [​IMG]


    Honestly this makes no sense.... appreciate the help thus far, hopefully this info helps.

    Edit: whoa, quick update. I used a CPU stress tester almost immediately after I posted this, and after it happened, it seems to have fixed the problem... weird, we'll see how long this lasts....
     
    davidvkimball, Sep 5, 2018
    #2
  3. Wysiwig Win User
    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, Sep 5, 2018
    #3
  4. Joe...J Win User

    CPU Usage Constantly Hitting 100%

    Windows 10 extreme CPU usage

    Thanks, but yes I was definitely seeing this issue while that trace was recorded.

    Task manager was constantly showing 100% CPU usage and Resource monitor shows silly numbers for the CPU usage (40441489%).

    If I sum the numbers under CPU in the Processes tab in Resource monitor, it matches the values shown in the trace (i.e., CPU usage is not 100%, but the charts and summary total at the top of the processes tab are maxed out.

    In task manager the CPU usage numbers seem to be normalised to 100%.

    i.e. they are constantly changing but seem to always add up to 100%.

    I think that the CPU usage reported in the trace is correct, but Task Manager and Resource monitor are doing something wrong?
     
    Joe...J, Sep 5, 2018
    #4
Thema:

CPU Usage Constantly Hitting 100%

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