Windows 8 and 8.1 Forums

Windows update CPU hog

  1. #1

    Windows update CPU hog


    I periodically get problems with Service Host Local System (13) hogging CPU.

    It starts, takes 25 - 30% of CPU and never stops. I think the problem is Windows Update, as I can 'cure' the problem when it occurs by either stopping or restarting the Windows Update service.

    My current Windows Update settings are to never check, as I prefer to take care of it myself (and had other problems with resources when I let it do its own thing).

    So my question is, given I have it set to never check, why is the Windows Update Service starting itself so often? (Sometimes 3 or 4 times per hour)

    And how can I stop it behaving this way?

      My System SpecsSystem Spec

  2. #2


    Posts : 5
    Windows 8.1


    Same issue here. Right after a clean install none the less.
      My System SpecsSystem Spec

Windows update CPU hog

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