Windows 8 and 8.1 Forums


taskhost.exe or taskhostex.exe eaiting up whole cpu kernel

  1. #1


    Posts : 3
    Windows 8.1 Pro

    taskhost.exe or taskhostex.exe eaiting up whole cpu kernel


    It seems this happens mainly when I leavy the laptop idle for some time.

    Sometimes this can be waited out, and it returns back to normal after a while. Sometimes, however, I have to resort to rebooting.

    I don't know if that's relevant, but I actually have done some weird stuff with this system. Namely I changes permissions of file C:\Windows\WinStore\WSHost.exe, since I wanted to disallow downloading Windows Store apps. The current permissions are:
    • For all application packages: allow read&execute, deny write
    • For system, admins and trusted installer: allow full control
    • For users: deny read&execute


    Any ideas how to fix this?

      My System SpecsSystem Spec

  2. #2


    Redmond
    Posts : 651
    Windows 8.1 x64


    If one of those is running (actually doing something on the CPU), then check your Scheduled Tasks and see which one / ones is / ar executing at the time.
      My System SpecsSystem Spec

  3. #3


    Posts : 3
    Windows 8.1 Pro


    Host process for Windows tasks consuming a whole kernel again (this time it's taskhost.exe).

    All running tasks shows following three tasks: (Task name / Started / Run duration / Current action / Task folder)

    Cache task
    Unavailable Unavailable Wininet Cache task object \Microsoft\Windows\Wininet
    MsCtfMonitor
    Unavailable Unavailable MsCtfMonitor task handler \Microsoft\Windows\TextServicesFramework
    SystemSoundsService Unavailable Unavailable Microsoft PlaySoundService Class \Microsoft\Windows\Multimedia

    This time it returned to normal itself. And this list of running tasks persisted even after taskhost.exe had stopped consuming 50% cpu.

    UPDATE:

    Running tasks on another account checked while Host process for Windows tasks was consuming a whole cpu kernel.

    Cache task
    Unavailable Unavailable Wininet Cache task object \Microsoft\Windows\Wininet
    CreateObjectTask Unavailable Unavailable Shell Create Object Task Delegate \Microsoft\Windows\Shell
    MsCtfMonitor
    Unavailable Unavailable MsCtfMonitor task handler \Microsoft\Windows\TextServicesFramework
    SystemSoundsService Unavailable Unavailable Microsoft PlaySoundService Class \Microsoft\Windows\Multimedia

    And yet another time:

    Cache task
    Unavailable Unavailable Wininet Cache task object \Microsoft\Windows\Wininet
    CreateObjectTask Unavailable Unavailable Shell Create Object Task Delegate \Microsoft\Windows\Shell
    FamilySafetyRefresh Unavailable Unavailable FamilySafety.WebSync \Microsoft\Windows\Shell
    MsCtfMonitor
    Unavailable Unavailable MsCtfMonitor task handler \Microsoft\Windows\TextServicesFramework
    SystemSoundsService Unavailable Unavailable Microsoft PlaySoundService Class \Microsoft\Windows\Multimedia

    I am sorry, I forgot to check if Host process for Windows tasks actually was taskhost.exe or taskhostex.exe in either of these times.

    And yes, there is Microsoft Family Safety enabled on some of the accounts.

    ---

    Also I start suspecting that for some reason, sometimes the Internet slows down horribly while Host process for Windows tasks behaves in this bizarre way.
    Last edited by mggm; 24 Jan 2015 at 14:25. Reason: info
      My System SpecsSystem Spec

  4. #4


    Trnava
    Posts : 683
    Win 8.1.1 Pro x64


    As cluberti said, you can disable them in Scheduled Tasks, I always delete them.

    Start - Run - Taskschd.msc

    \Microsoft\Windows\Multimedia - SystemSoundsService
    \Microsoft\Windows\TextServicesFramework - MsCtfMonitor
    \Microsoft\Windows\Wininet - CacheTask
      My System SpecsSystem Spec

  5. #5


    Posts : 3
    Windows 8.1 Pro


    I am sorry for being resistant to heed this advice, but...

    Well. First, I can't see how can these three tasks be responsible for those slowdowns, since they seem to be always running, and the slowdowns occur only occasionally. Maybe I'm wrong.

    Second, these are system tasks. I read that SystemSoundsService is responsible for system sounds , and CacheTask has something to do with Internet caching. I mean I will disable them if I have to, but I'm afraid of running into some unexpected problems in the future... Problems I won't be even able to connect with meddling with some System Tasks...

    Don't get me wrong, I've just heard that one simply cannot chop the system of it's elements without risking problems...
      My System SpecsSystem Spec

taskhost.exe or taskhostex.exe eaiting up whole cpu kernel
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