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    CPU is rapidly cycling from 0 to 100%


    My CPU started fluctuating from 0 to 100% utilisation every 1-2 seconds. I made no change to the system.

    I checked task manager, found that svchost.exe was using between 30 & 98%.

    Therefore I stopped that process and the CPU stopped cycling.

    Then I restarted and the process repeated, I again stopped svchost.exe and my CPU is running at about 7% now, but I know it will start again when I restart.

    Having checked this forum I ran full McAfee virus scan and spyware scan and found nothing.

    I have an AMD athlon XP1800+ 1.14ghz
    512 MB ram
    64 mb video card
    Windows XP sp2

    Can anyone suggest anything else.

    Thanks
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    sounds like a virus, there is a thing in windows that uses this name, and there are also a few viruses that go under the same name, so run a virus scan and see what happens

    BTW, you should get this moved to the windows help forum, it is not a hardware CPU question
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    Originally Posted by edman007
    sounds like a virus, there is a thing in windows that uses this name, and there are also a few viruses that go under the same name, so run a virus scan and see what happens

    BTW, you should get this moved to the windows help forum, it is not a hardware CPU question

    Thanks for the suggestion - I did run a full scan which found nothing.
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    SPYWARE/ADWARE/MALWARE test would get next priority.
    Also check more unnecessary services and disable them to help narrow down the problem. This link should help: http://decentdownloads.x-istence.com...php/t1106.html
    For your more complex hardware related problems, visit DevShed's sister forums: DevHardware
    If you don't already know about it, please checkout our guide to Folding@Home . Join DevHardware team and help cure diseases. Your support is valuable and much appreciated. *
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    Devshed Newbie (0 - 499 posts)

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    Also, check out this article: http://www.microsoft.com/technet/sec.../ms04-011.mspx
    It has important information about svchost and possible virus vulnerability related to it..
    For your more complex hardware related problems, visit DevShed's sister forums: DevHardware
    If you don't already know about it, please checkout our guide to Folding@Home . Join DevHardware team and help cure diseases. Your support is valuable and much appreciated. *
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    Thanks for the advice.

    I ran all the scans possible - which reported nothing, but the problem is solved.

    many thanks for your help

    Regards
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    Huh.....Windows.
    For your more complex hardware related problems, visit DevShed's sister forums: DevHardware
    If you don't already know about it, please checkout our guide to Folding@Home . Join DevHardware team and help cure diseases. Your support is valuable and much appreciated. *
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    I also have svchost.exe which also uses up 40 -100% of my CPU, it should die down after about five minutes, try defragmenting your hard drive and it womnt take as long

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