100% CPU usage

Discussion in 'Windows Vista Performance' started by radamsk1, May 22, 2008.

  1. radamsk1

    radamsk1 Guest

    I know this is a common problem afflicting many people, especially wit
    various system services like svchost.exe etc. etc...

    However, my CPU tends to run 100% randomly on ANY program that i
    currently running or that I am trying to run. Sometimes it calms bac
    down, but usually runs at 100% consistently.

    Some programs that randomly run at 100% include Skype, MSN messenger
    WMP, explorer.exe, taskmanger, etc. Basically it is almost an
    program. I fear something is wrong somewhere in the OS.

    Any ideas
    radamsk1, May 22, 2008
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  2. radamsk1

    propman Guest

    How much ram is installed in the system? If you are low on memory and
    your hard drive is constantly active, CPU activity will increase by a
    subquential amount.

    PS.....good idea when you are seeking info about system troubles to
    included details on your systems specs, OS, fixpacks (service packs)
    etc. :)
    propman, May 23, 2008
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  3. radamsk1

    radamsk1 Guest

    Sorry about the lack of info.

    2GHz Core Duo, 2GB Ram, Dell XPS 1210 with Vista Home Premium. I'v
    never had any of these problems prior to the start of this about a wee
    ago. No new installed programs, nothing found on antivirus or spywar
    scans. On Task manager less than 50% of memory seems used, no majo
    use of virtual memory is noted. Randomly one process running wil
    suddenly go to 100% usage and be sustained for a few minutes, upo
    ending of the program in task manager, CPU use returns to normal withi
    30 seconds. However, this happens with many programs, not just on
    single running program
    radamsk1, May 23, 2008
  4. radamsk1

    Malke Guest

    Do clean boot troubleshooting because something is causing this, whether it
    is easily apparent to you or not. :)

    How to troubleshoot a problem by performing a clean boot in Windows Vista -

    Also, please review these general malware removal steps to see if you were
    as thorough in your scanning. If you weren't, it would be a good idea to do
    at least some of the steps. But try the clean boot troubleshooting first.


    Malke, May 23, 2008
  5. radamsk1

    blueknight6 Guest

    ::This is common especially within two to three weeks after fresh Vist
    installation. You should disable the windows search service and then se
    the CPU resources (click on graph to see process detail), in Tas
    manager’s Process page and then resource monitor. It will work but cos
    you slow search speed. :
    blueknight6, May 23, 2008
  6. radamsk1

    SCSIraidGURU Guest

    Indexing service can also cause issues on CPU. Try error checking and
    defrag your hard drive. Do you have all your updates and latest
    versions of all the apps.


    Michael A. McKenney
    'www.SCSIraidGURU.com' (http://www.SCSIraidGURU.com)

    Supermicro X7DWA-N server board
    pair of Intel E5430 quad core 2.66 GHz Xeons
    16GB DDR667
    eVGA 8800 GTS 640 MB video card
    SCSIraidGURU, May 23, 2008
  7. radamsk1

    radamsk1 Guest

    All current program update, did malware/spyware scans again that turne
    up negative. I've been running Vista on here for the past year, neve
    had a problem with the indexing service but I'll try disabling it for
    day and see if it happens still. Thanks for the tips, i'll tr
    researching them. Any other ideas are welcome still
    radamsk1, May 23, 2008
  8. radamsk1

    JW Guest

    What problem does a application running flat out cause you? Any high
    priority application that is not performing physical I/O will consume all
    CPU power available.
    JW, May 23, 2008
  9. radamsk1

    radamsk1 Guest

    Basically the laptop comes to a halt, it becomes unresponsive, take
    over a minute to open a program... basically unusable until the even
    resolves which takes about 2 minuntes, or I have to force the progra
    to end and close, which resolves the 100% usage about 30 seconds afte
    it is closed. But the main problem is that it seems any program can b
    doing it ... IE, svchost, ccsvchost, skype, messenger, even tas

    Ran more spyware scans, antivirus scans in safe mode with no avail.
    Hijackthis reports reveal no useful information. I can't isolate an
    specific program either causing it, thereby complicating thi
    situation. Half of the time the computer is ok, but othertimes
    random program consumes the whole CPU use and I can't use it
    radamsk1, May 23, 2008
  10. radamsk1

    Malke Guest

    Did you do clean-boot troubleshooting per the KB article?

    Malke, May 24, 2008
  11. radamsk1

    Martin Stein Guest

    Take a look at the sysinternals process explorer tool. That allows you to
    see what the threads inside the offending process are working on. Then you
    might be able to see what system component is using all the CPU by looking
    at the stack of the thread with the high CPU utilization.

    My guess is that it could be some virus scanner (or similar) that is linked
    in dynamically into each program. Uninstall everything that is not necessary
    and update the rest to the latest version (including applications, device

    Martin Stein, May 29, 2008
  12. radamsk1

    radamsk1 Guest

    Ok, as mentioned prior, I tried the clean-boot and tried to discern an
    specific process causing my CPU issues. However, this came to n

    Current update on the situation:
    It appears whatever my active program running is, that which woul
    normally consume the most CPU use, is consuming the majority of th
    CPU, up to 70% of it. Whether this program be MSN, skype, tas
    manager, IE, and so on. And some other random running process appear
    to consume the rest. I'm uncertain why there is a lack of an
    particular type of program causing this. Using process manager
    couldn't find anything linking any of these programs.

    Any further ideas would be appreciated. At this point I fear I ma
    have to do a clean reinstallation. I rather not do this due to tim
    restraints, but if it's all that is left, I'll make do
    radamsk1, Jun 13, 2008
  13. This is totally off the wall, but could your power management be
    underclocking the CPU when the system load is low? In theory, dynamically
    underclocking the CPU until the current load just fully utilises it saves
    the most power, compared with running the CPU at maximum speed all the time
    and having it only partially utilised.

    I'm sure this is available in various CPUs available from both Intel and

    Sorry I can't help more.

    Steve Thackery, Jun 13, 2008
  14. radamsk1

    JW Guest

    It is also possible that the CPU is being slowed down due to overheating if
    the laptop fans are partially clogged or the laptop is not setting on a hard
    surface where the fans can their air from.
    JW, Jun 13, 2008
  15. radamsk1

    keesue Guest

    I'd like to say thanks for the referral to Process Explorer!
    keesue, Jul 13, 2008
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