Windows Vista Forums

CPU usage keep going up and down even when computer is not use.

  1. #1


    GT Guest

    CPU usage keep going up and down even when computer is not use.

    My CPU usage keep going up from 1% through 36%, 46%, 50% randomly and then
    goes back to 1% again. CPU usage keep going up and down this seem to happen
    when i hear my harddrive make a whistling sound. I disable my antivirus and
    still does that and it also happen when computer is not being use.

    Is this CPU usage activity normal in Window Vista?

      My System SpecsSystem Spec

  2. #2


    R. McCarty Guest

    Re: CPU usage keep going up and down even when computer is not use.

    Most likely it's background or idle time tasks. Vista has a number of
    maintenance type scheduled tasks. Some work from a fixed schedule
    and others are triggered. Some will run when the system has been at
    an idle state for a period of time.
    Best to use a tool, such as SysInternals Process Explorer. It can give
    you very exact information on what process(es) are running the system
    resources used by them.

    Download and tool description here:
    http://www.microsoft.com/technet/sys...sExplorer.mspx


    "GT" <GT@discussions.microsoft.com> wrote in message
    news:8645F45B-4E19-43ED-A61B-A8E6C74279C6@microsoft.com...
    > My CPU usage keep going up from 1% through 36%, 46%, 50% randomly and then
    > goes back to 1% again. CPU usage keep going up and down this seem to
    > happen
    > when i hear my harddrive make a whistling sound. I disable my antivirus
    > and
    > still does that and it also happen when computer is not being use.
    >
    > Is this CPU usage activity normal in Window Vista?




      My System SpecsSystem Spec

  3. #3


    roen Guest

    RE: CPU usage keep going up and down even when computer is not use.

    Same problem as GT. The program "searchprotocolhost.exe" reads my harddisk
    all the time. Is this normal?

    "GT" wrote:

    > My CPU usage keep going up from 1% through 36%, 46%, 50% randomly and then
    > goes back to 1% again. CPU usage keep going up and down this seem to happen
    > when i hear my harddrive make a whistling sound. I disable my antivirus and
    > still does that and it also happen when computer is not being use.
    >
    > Is this CPU usage activity normal in Window Vista?


      My System SpecsSystem Spec

CPU usage keep going up and down even when computer is not use.

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