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    CPU usage raises to 50% by System (NT Kernel & System) on Windows 7

    Discussion in 'VAIO / Sony' started by gilf, Nov 21, 2009.

  1. gilf

    gilf Notebook Enthusiast

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    Hey,

    I've upgraded to Windows 7 Professional 32-bit about a month ago.
    Everything worked great on my Vaio Z570N.

    In the last few days I notice my CPU usage raise to 50% every few minutes when I use the computer. I think it happens mostly when I'm browsing the net using Chrome, which I reinstalled today, but nothing changed.

    The process that gives me the troubles is System (PID=4), or as it described: NT Kernel & System.
    I see it goes to 50% (which is of course 100% cpu usage) and back to 0% after few seconds.

    It really bothers me since the computer is horribly slow when it happens, obviously.

    When I use Resource Monitor to see what it does while taking 50% cpu, I see no change in Disk\Memory\Network usage. So I can't really tell what happens during that time.

    Did anyone else ran into this problem? or have any insight on this?


    TIA,
    Gil.
     
    gilf, Nov 21, 2009
    #1
  2. gilf

    gilf Notebook Enthusiast

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    gilf, Nov 21, 2009
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