High idle cpu usage?

Discussion in 'Windows 8 Help and Support' started by Dean Buck, Dec 8, 2012.

  1. Dean Buck

    Dean Buck Active Member

    Dec 8, 2012
    Likes Received:
    G'day everyone,

    Just a quick question. I've noticed that when I leave my pc for some time and the screen savers come on, then the screens go blank (my machine doesn't sleep or hibernate) when I use the pc again I can see that during the time the monitors had turned off, the CPU usage was at or above 50% - any ideas why?

    When I use the computer after that, watching movies, photoshop etc the cpu usage is much less than that!
  2. kemical

    kemical Windows Forum Admin
    Staff Member Premium Supporter Microsoft MVP

    Aug 28, 2007
    Likes Received:
    G'day Dean,

    Dean have you checked your power settings via the control panel? You'll see various options regarding monitor, HDD and so on. I think by default the monitor powers down after 10 minutes or so.

    As for the high cpu usage. Check the event viewer to see if anything untoward is happening and I'd also run a scan from the app found here:

    Malwarebytes : Free anti-malware download

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