My CPU runs at 50 to 100% when little or nothing works how to stop it

My CPU runs at 50 to 100% when little or nothing works how to stop it


What is taking up 50-100% depending on the Task Manager?

You can use Process Explorer to get a better idea on what's running...

Tags: Windows

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    What is your system brand and model?

    You may be able to get clues with what is happening by using the Task Manager and maybe understand.

    You will always figure out what happens if you use Process Explorer.

    Download Process Explorer, so you can see what is 'really' currently running on your system, especially behind these multiple svchosts see you in the Manager of tasks running.

    Download Process Explorer from here:

    You'll like Process Explorer when you get the hang of it.  Process Explorer is the Manager of Windows taskbar on steroids.

    Process Explorer installs nothing so it won't slow down your system since it works only on request.

    Process Explorer can seem a little intimidating at first because it has so much information, but you will begin to make love the way it works when you're looking for performance problems.   You can even say EP you want it to be your new default 'Task Manager' value in the future.  You can always run the original tasks as Manager.

    Once you get Process Explorer running, expand the columns, made drag the corners of the screen for it's largest, etc., so you can see as much information as possible in the window.  Now you can really see what is running on the system.

    Here's a screenshot of my system when I use Process Explorer:

    The CPU column is usually the most interesting start with performance issues - which uses the most?

    It is OK and normal to have of multiple svchost processes running, but sometimes malware will hide behind them, as the malware knows that you will not be able to spot it in the Task Manager.

    Malicious software can disguise itself also seems to be a legitimate process of XP or he could hide under/behind other processes that you see running in Task Manager if you can't see the execution.

    The malware would trick you into thinking you must use a System Restore Point, run a repair install or reinstall your XP from scratch when you really don't.

    Looking at the display in process Explorer, you want the CPU most to be associated with the system idle process.  It's 'free time' on your system, so more time there, more free.

    If you look at the graphs of performance and see red spikes (or not) double click the graphic in the upper left corner to display the graph to use.  Move the mouse over any pics to see what are the causes.  Even if the Spike has already scroll screen, you can still move the mouse over the edge to see what caused.  You can also just wait for a pic to happen and then see what caused the Spike.

    To help understand your process svchost and what is running under them, read this article and you will be smarter than the average bear:

    Then with a few Google searches, you can watch every thing in PE and behind your svchost processes running and see what it is and decide if your configuration needs it or not and then decide what to do about this.

    If you think you have a svchost.exe process amok, executed using PE, you can right-click that offensive svchost, properties and on the Services tab and son, you can see which runs under it.

    There is a CPU column it will expand (make the wider column) so that you can see CPU.  Maybe you can spot what background process is so CPU consumption under the svchost.exe process.   Stroll under the svchost process and you will find it.

    You can also see what is running under each svchost simply by pointing your mouse on the svchost.exe process.  Some of them have just a things working under them and some will have several things (I hope that all the legitimate XP services) and some will have a lot of things.

    If you have a svchost process that is afflicted, which runs under your afflicted?

    No running process must defy reasonable explanation.

    First, see what you can discover using Process Explorer and then if nothing is obvious, see other things.

    Do, or do not. There is no test.

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    Hey guys I have a problem I could use some help with.

    I have a Dell Studio 1555 laptop

    Windows Vista Edition Home Premium 64-bit

    4 GB of Ram

    Intel Duo Core T6500 @ 2.1 GHZ

    I've had this laptop over a year now and it works perfectly but around a week ago, he went a little out of whack.

    Basically, no matter what programs are running my CPU usage will be 90-100%, which makes the laptop almost impossible to use.

    It comes and goes a bit, but for the majority of the time is around this margin. (for example I wrote that his party up to 10% once again, little about what I expected, but it will rocket upward again in a few minutes)

    The strange thing is that it doesn't seem to be a program or .exe using all CPU. Sometimes odd things as Dell Dock (which must use almost nothing) use up to 40% and if that gets closed or temporarily fixed things like explorer.exe, svchost.exe or whatever happens to be executed at the moment when will start using more CPU and look back up to 100%.

    Only, this started happening recently and I have no idea what made him... Any thoughts?

    Thanks a lot for all the suggestions/help

    (and just a quick update)

    My computer stopped a few times now unexpectedly as well and do not restart for 10 minutes. Once again, no idea why... The back of it felt very hot but I wonder if a fan issue could play a role?)


    Heat can be the cause where the result of the CPU running so high. Make sure that the vents are clear and
    try adding a small fan blowing in the wind (or at least through them) to see how effective that has
    on the question.

    Check with a computer store real (not of leeks and glances at a Best Buy or other department stores) or Dell
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    Dell support

    Dell support drivers - product manual & warranty Info (left side) - and much more

    Dell forums

    This is a tool for troubleshooting to see if the software is part of the question - start with a clean boot.

    What antivirus/antispyware/security products do you have on the machine? Be one you have NEVER
    on this machine, including those you have uninstalled (they leave leftovers behind which can cause
    strange problems).


    Follow these steps:

    Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN

    Enter this at the command prompt - sfc/scannow

    How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
    generates in Windows Vista cbs.log

    Also run CheckDisk, so we cannot exclude as much as possible of the corruption.

    How to run the check disk at startup in Vista


    After the foregoing:

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

    Optimize the performance of Microsoft Windows Vista
    To see everything that is in charge of startup - wait a few minutes with nothing to do - then right-click
    Taskbar - the Task Manager process - take a look at stored by - Services - this is a quick way
    reference (if you have a small box at the bottom left - show for all users, then check that).

    How to check and change Vista startup programs

    A quick check to see that load method 2 is - using MSCONFIG then put a list of
    those here.

    Tools that should help you:

    Process Explorer - free - find out which files, key of registry and other objects processes have opened.
    What DLLs they have loaded and more. This exceptionally effective utility will show you even who has
    each process.

    Autoruns - free - see what programs are configured to start automatically when you start your system
    and you log in. Autoruns also shows you the full list of registry and file locations where applications can
    Configure auto-start settings.
    Process Monitor - Free - monitor the system files, registry, process, thread and DLL real-time activity.

    There are many excellent free tools from Sysinternals

    -Free - WhatsInStartUP this utility displays the list of all applications that are loaded automatically
    When Windows starts. For each request, the following information is displayed: Type of startup (registry/Startup folder), Command - Line String, the product name, Version of the file, the name of the company;
    Location in the registry or the file system and more. It allows you to easily disable or remove unwanted
    a program that runs in your Windows startup.

    There are many excellent free tools to NirSoft

    Window Watcher - free - do you know what is running on your computer? Maybe not. The window
    Watcher says it all, reporting of any window created by running programs, if the window
    is visible or not.

    Many excellent free tools and an excellent newsletter at Karenware


    Vista and Windows 7 updated drivers love then here's how update the most important.

    This is my generic how updates of appropriate driver:

    This utility, it is easy see which versions are loaded:

    -Free - DriverView utility displays the list of all device drivers currently loaded on your system.
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    Description, version, product name, company that created the driver and more.

    For drivers, visit manufacturer of emergency system and of the manufacturer of the device that are the most common.
    Control Panel - device - Graphics Manager - note the brand and complete model
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    Driver (this can do nothing as MS is far behind the certification of drivers) - then right-click.
    Uninstall - REBOOT it will refresh the driver stack.

    Repeat this for network - card (NIC), Wifi network, sound, mouse, and keyboard if 3rd party
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    Now in the system manufacturer (Dell, HP, Toshiba as examples) site (in a restaurant), peripheral
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    Download - SAVE - go to where you put them - right click - RUN AD ADMIN - REBOOT after
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    Always check in the Device Manager - drivers tab to be sure the version you actually install
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    Repeat to the manufacturers - BTW in the DO NOT RUN THEIR SCANNER device - check
    manually by model.

    Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.

    How to install a device driver in Vista Device Manager

    If you update the drivers manually, then it's a good idea to disable the facilities of driver under Windows
    Updates, that leaves about Windows updates but it will not install the drivers that will be generally
    older and cause problems. If updates offers a new driver and then HIDE it (right click on it), then
    get new manually if you wish.

    How to disable automatic driver Installation in Windows Vista - drivers (WS.10) .aspx


    Refer to these discussions because many more excellent advice however don't forget to check your antivirus
    programs, the main drivers and BIOS update and also solve the problems with the cleanboot method

    Problems with the overall speed of the system and performance

    Performance and Maintenance Tips

    Explorer Windows stopped working

    Hope these helps.

    Rob Brown - MS MVP - Windows Desktop Experience: Bike - Mark Twain said it right.

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