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Max CPU - New Problem

  • 22-09-2011 11:00pm
    #1
    ByJove
    Closed Accounts Posts: 27 ✭


    Hi all,

    I've owned the Toshiba L500-1XL (Windows 7 64 bit) for just over a year now and I've recently come across a new problem: for the last few weeks, the whole laptop can become very, very slow. Whatever I'm doing, the laptop freezes and can stop responding for even a few minutes at a time. So I took a look at the Windows process manager and found that it is never just one application. One app will show max or almost max CPU, so if I end that, another app just replaces it for max CPU...this is a new problem; as I say I've had the laptop a year and this hasn't been a problem before.

    • I'm security mad and do quick scans and full scans frequently, including spyware and boot-time scans for rootkits, nothing found.
    • I do upgrade drivers all the time, but have already re-installed all drivers which came with the laptop and no change.
    • I have recently added more RAM and a new internal hard drive, but this problem existed BEFORE the new installations.
    • I tried slipstreaming/integrating SP1 into a Windows 7 disk and installed that, and I noticed the CPU-hijack problem for the first time then. I assumed I'd done something wrong, so took out the official Toshiba installation disk and did a clean install, and updated manually but the CPU-hijack is still there.
    • I uninstall applications that I don't use and there aren't many new applications on my laptop that I don't know well
    • I searched this a little on the internet and it's a very common problem but I still don't know what to do. I see it's covered people as far back as Windows XP, and people have mentioned possible dusty vents, viruses, disk-reading activity over-reading and nothing I've investigated seems to be helping.
    • I've tried disabling all start-up items and non-Microsoft services and no change.
    Essentially, the CPU doesn't hijack all the time, if I start a new application or ask it to do something like a quick-scan for a virus or anything, it can suddenly freeze for up to a few minutes...

    I was using someone else's PC today and was shocked to see how well it was running, and remembered what a pleasure it is to use a computer without a CPU-hijack. Does anyone have any ideas? I'd be very grateful, this is starting to driving me nuts!

    Thanks


Comments

  • #2
    Alanstrainor
    Registered Users, Registered Users 2 Posts: 23,157 ✭✭✭✭Alanstrainor


    Take a screenshot of what processes are running when the CPU spikes and see if you can tie it down that way. Sort it by CPU usage.

    Also, you say you're security mad, does that mean you have a lot of different antivirus/spyware/rootkit etc software running simultaneously?


  • #3
    ByJove
    Closed Accounts Posts: 27 ✭ByJove


    Hi thanks for the reply. I'll try pin it down by CPU, but I'm not hopeful because the hijacker is random - I've seen just about every application hijack CPU.

    For antimalware, I traditionally use one antimalware, and have trialled separate antispyware but have stripped it down to just one antimalware, and have even tried switching to different ones and no help, the problem still exists.


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