Constant 100% CPU usage?

Discussion in 'Computer Software and Operating Systems' started by Seriel, Aug 4, 2016.

  1. Seriel
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    Seriel Worshipper of Skiddos

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    Halp.
    My computer (Windows 7, have other partitions but too lazy to reboot and need windows for stuff) seems to have constant 100% CPU usage.
    It seems to be used up by "system" (50%) and "svchost.exe" (50%) which is leaving nothing for anything else, resulting in a laggy mess of a pc.
    Its reached the point where I actually have to type this post out on my phone, because my computer is busy dying.
    I checked the temperatures and the CPU is sitting at 64°C.
    Not sure if this is bad or not, considering I just turned my computer on for the morning.
    I tried to attach screenshots but apparently it can't even manage that. Basically its at constant 100% usage, the graph is maxed out on both cores :/
     


  2. Roxe__

    Roxe__ GBAtemp Regular

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    why don't you post all the processing your CPU is running, and we could help you then!
     
  3. Seriel
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    Seriel Worshipper of Skiddos

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    Read the post.
    50% by "system" and 50% by "svchost.exe".
    I can't attach screenshots because my computer is too busy dying.
    I can't even write this post on it, had to use my phone.
     
  4. Roxe__

    Roxe__ GBAtemp Regular

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  5. FAST6191

    FAST6191 Techromancer

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    svchost is the services host program. It can be many things but it is usually windows update that is causing this sort of CPU (and RAM and hard drive which also adds to the fun). Not sure why system is saying 50% if it means it, it is usually just the idle process so probably does not apply.

    You can disable updates and get things back to a sane level, or you can force updates to apply and then disable it afterwards. I don't like disabling updates though. If you want to then click start run, type in services.msc and run that. Windows update is the service (down the bottom if you arrange alphabetically) so disable that or stop it with a right click.
    You can also disable it in the windows update part control panel if you want, or simply torpedo the svchost in task manager, though if the you do the latter it will return when you reboot.

    Also if you are still on 7 I guess you are on it for a reason. If you have not disabled the windows 10 stuff then it can also cause you fun. http://ultimateoutsider.com/downloads/ get GWX control panel from there and disable windows 10 icons and upgrades and such.
     
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  6. Reiten

    Reiten Member

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    If it's svchost.exe there's a good chance that it's windows update that's trying to find updates in the background(Since Win10 came out finding updates usually takes me anywhere from 30 mins to forever). Try disabling the windows updates and restarting the PC and check if the problem is fixed.
     
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  7. Seriel
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    Seriel Worshipper of Skiddos

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    Well.
    I disabled the windows update service, and now its capping at 50%, the svchost is gone but system appears to be hogging a whole core to itself, using up 50% CPU when idle. :/
     
  8. Spaqin

    Spaqin GBAtemp Regular

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    Try [Windows]+R -> resmon
    In the resmon, see what svchost, with what PID is taking your cpu.
    I don't remember if Win7's taskmgr allows you to see services and what PID they use (I use DBC TaskManager), but my very blind guess is kill/disable/stop Windows Update (I had similar problems with it recently).


    /edit
    oh, got ninja'd

    did you try restarting?
     
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  9. Seriel
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    Seriel Worshipper of Skiddos

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    Restarted, svchost is dead, but system is still using 50%, and I still have crippling lag.
     
  10. Spaqin

    Spaqin GBAtemp Regular

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    Hm, it could also be caused by a driver. Did you try unplugging external (ie. USB) devices, one by one? Maybe one's broken and system is trying to get a response.
     
  11. Seriel
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    Seriel Worshipper of Skiddos

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    All I have plugged in is my mouse and my phone. Unplugging both makes no difference.
     
  12. Red9419

    Red9419 GBAtemp Advanced Fan

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    My laptop is always running at 100% constant cpu usage. It's expected on my laptop because it's shit haha. Hope you fix it as i wouldn't wish the slowness i experience upon another person.
     
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  13. Spaqin

    Spaqin GBAtemp Regular

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    What about Safe Mode? Does the problem still occur there?
     
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  14. Seriel
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    Seriel Worshipper of Skiddos

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    Ah!
    That's a good idea.
    One sec, will finish writing this post when I'm in safe mode lmao (thank god for phones)
    Wew this resolution..

    Ah!!
    >0% CPU usage.
    Well.
    We're fine in safe mode xD
     
  15. Spaqin

    Spaqin GBAtemp Regular

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    Well, now you could try restoring Windows to a point before the problem came up.
     
  16. Seriel
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    Seriel Worshipper of Skiddos

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    Nah I disabled restore points because I like to live on the edge. (And they take up a lot of space)
    Lmao.

    I'll try uninstalling some recent programs and see if that helps at all.
     
  17. Spaqin

    Spaqin GBAtemp Regular

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    I'd still bet on drivers. Did you (re)install any recently?
     
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  18. Seriel
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    Seriel Worshipper of Skiddos

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    Aaand here we go.
    I uninstalled "ext2fsd" which I was using to view my Linux partition via windows. And now it's all fine.
    I guess that uses drivers so maybe you were right ;P
    Is there any alternative software which won't break my pc lel
     
  19. nero99

    nero99 GBAtemp Advanced Maniac

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    I recommend getting a quad core or higher cpu. better performance and all that fun stuff will come out of it.
     
  20. AbyssalMonkey

    AbyssalMonkey GBAtemp Regular

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    Sounds like a driver issue. Something I hate dealing with. I actually reinstalled windows from scratch because I couldn't be asked to hunt down the one in a billion drivers was causing a crash for my mixer, and reinstalling windows twice while slowly installing drivers was quicker. Turns out for me it was one of the motherboard drivers, and I refused to install it. Now every time I reboot, my computer prompts me with 5 messages saying a program failed to launch. Luckily I have uptimes of several months at a time, so I could care less about basically one time issues.

    Something you might want to hunt down as well is if it might be a rouge startup service/program. Run msconfig.exe in safe mode and disable all non essential startup programs and services (essential as in microsoft services (unless you *really* know what you're doing) and graphics and chipset services). If you reboot into a standard startup, you know one of those done screwed up.
     
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