My PC has high CPU loads a few times every couple minutes

By jo233
May 24, 2012
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  1. Marnomancer

    Marnomancer TechSpot Booster Posts: 808   +51

    Guys, I don't think a fresh install is a good alternative. Not only is this long and scary work for someone not so experienced with it, but can also have undesired consequences (DRM issues to be more specific).
    On a different note, that's where Linux pretty much beats the crap out of other OSes. Almost no maintenance needed.
    So, it can actually be more of a cause of headache than save it. Not to mention a fresh install is not the solution to everything.
    Yes, it's getting very common and most of the threads down at Tech Support are along the same lines.
    The System Idle Process is, if you read the label, a process of keeping the system idle. It's 100 - (minus) CPU Load. It is not meant to affect system performance if too high (quite the opposite). It's when it's low that you are supposed to start worrying. Low System Idle Process means the CPU is under load.
    The pagefile being disabled won't reduce system performance (quite the opposite). It does reduce stability however, when the system memory (RAM) isn't enough, because the kernel now has nowhere to roll out the extra pages. However, that is hardly the issue at hand.
    Yes, doing a System Restore can possibly restore the malware if any. So when you run a malware scan, I strongly recommend you perform a "Complete System Scan", including everywhere that requires administrator-level authority. Practically every byte of information on the hard-disk(s).

    Hope you understand what I'm trying to say. If you do not, please ask before taking any steps.

    Regards,
    Marnomancer
  2. jo233

    jo233 Newcomer, in training Topic Starter Posts: 34

    Google chrome has allowed many tabs to be opened (without freezing) unlike the previous browser (IE8) . Internet is much better with Chrome and the CPU is much consistently lower (e.g fluctuating between 0-8)
    There is the occasional fan buzzing. Also when I put the pc on sleep mode, 2 or 1mins in it will then start up without any interference; this could be because of anti-virus software though.
    Not sure if a system restore/fresh install of windows xp is the best option. (e.g may not copy all the stuff I need plus not sure how to do it)
    Will probably try in this order:
    1.Avira/Microsoft Security Essentials
    2.Auslogics Disk Defrag
    3.CCleaner

    may download HWmonitor/Speedfan.
  3. hood6558

    hood6558 TechSpot Booster Posts: 292   +44

    I've seen this problem before, usually caused by a running process, possibly malware. In task Manager look at the CPU usage on all the processes (for all users) as they're running. Kill any high-CPU-use processes one at a time and see what happens. When you isolate the process causing the problem, Google it and see what the deal is. Sometimes it's malware, other times it's an unnecessary service running in the background. Sometimes Windows problems can cause this, and also buggy hardware drivers. I've also seen Java cause this by trying to update itself.
  4. PinothyJ

    PinothyJ TechSpot Enthusiast Posts: 429   +15

    Also, after a big update or reinstall of .Net your system will rebuild your system's .Net assemblies which will take up quite a lot of CPU and make your machine sluggish. But once it finishes it should be back to normal for your operating system.


    That is at least one contributor to high CPU usage…
  5. jo233

    jo233 Newcomer, in training Topic Starter Posts: 34

    what do you mean by '.Net assemblies'?

    also which Auslogics defrag do I download..the free or pro one? http://www.auslogics.com/en/software/


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