Windows 8.1 100% Disk Usage Problem


  • I am running a Toshiba Satellite C855D-S5110. 12 GB Ram, 456 GB HD with 311 GB free, CPU Max speed 2.7 GH. My computer, as many other W8 and W8.1 users seem to suffer, is nearly constantly at 100% disk usage (apparently
    I have seen many claims as to what causes this; some even say it involves a bad HD. However, I do not think my HD is bad because
    1. My HD was fine before I got 8.1, to the best of my knowledge ( was on 8 prior to 8.1)
    2. Most importantly, when my computer isn't in the 100% phases, it seems to work absolutely fine!

    I would like help in figuring out what to do about this problem, as well as why it occurs and why it works the way it does (i.e. seemingly just going away for long periods of time).
    It is extremely difficult to work when my computer is being very slow, and not knowing when it will happen or what makes it stop happening is frustrating.
    I will provide below a list of measures I have taken, edited to include new things tried.
    1. Adding RAM
    2. Increasing pagefile
    3. Running programs to clean up clutter, fix registry problems, free up memory, etc (specifically, Iolo System Mechanic)
    4. Disabling the Windows Search Indexing service
    5. Checking for updates
    6. Running Microsoft Security Scanner (it found nothing)
    7. Disabling Live Tiles (of which I only had one in the first place!)
    8. One person claimed that their problem went away when they ran Skype, of all things. I tried this, though it did not do the trick.
    9. Booting in Safe Mode.
    10. Clean Boot.
    11. My drive is 0% fragmented.
    12. Trying to repair the Windows Image does nothing, as it comes up as being healthy when scanned.

    13. sfc /scannow did not fix the problem either.
    14. Running Microsoft's performance scanner and uploading the .etl file got me a reply blaming Chrome, which is impossible because the problem occurs with no programs running. I will try another recording and put it up; the link will be edited in.!945&authkey=!APrxfxQeNw14igc&ithint=file%2c.etl
    • Edited by FiveTwoThree Saturday, December 21, 2013 3:07 AM
    Wednesday, December 18, 2013 6:35 AM

All replies

  • I first had problems shortly after downloading the free upgrade from 8 to 8.1 from the Windows Store; this was shortly after 8.1 had been released.

    At first, everything seemed fine. Then my computer started taking a long, long time to come out of sleep. I talked to a Microsoft tech over support chat and then allowed him to access my computer via the program he provided. Afterward, he claimed my issue was that my computer was having trouble handling 8.1 because it needed more memory. I planned to get more memory, and the issue started to build and build til it got to this point.
    I installed the memory about two weeks ago and booted up, expecting my computer to be nice and fast. When I checked Task Manager, I saw that the memory was working fine, but I noticed that Disk Usage was at 100%, which I realized had been happening since the real slowdown emerged, but I had not known that it was the problem.

    If it helps, additional information on how my laptop runs: It boots absolutely fine, and after leaving it on for maybe an hour it seems to work a bit better---the 100 is still there, but I am able to use Chrome or Office provided I only use one thing at a time. Windows Explorer takes a rather long time to open, though, and obviously I'd prefer for my computer to be fixed.

    Do you think I should try refreshing Windows? I will be able to do so within the next few days.

    Wednesday, December 18, 2013 5:11 PM
  • So, was there ever an answer for this?  I can't seem to find one anywhere, so when my PC isn't in use I force it into hibernation.  Maybe this will keep my disk drive running a while longer and not being worn out by 8.1.  SDD do wear out you know!  I'll keep searching and if there is an answer I'll get back to you.
    Friday, March 28, 2014 1:50 PM
  • Having the exact same problem on a computer, which yesterday was 8.0 prof - is today 8.1 prof.  The drive activity goes WAY up when booting  - to 100%.  It then seems to calm down but randomly will go up and down throughout the day peaking at 100%. The fact that it was fine prior to updating to 8.1 indicates an issue with 8.1 to me. Absolutely nothing else has changed on this machine - aside from Windows Update.

    Wednesday, April 23, 2014 2:28 PM
  • hi there,

    I have the same problem. I had from the beginning 8.1 and the issue is still there after trying all the solutions that I found over the internet. I just want to know if I need to go back to Windows 7 as a last solution.

    Window 8.1 is great, it has a nice design and it runs really good on my laptop (when is not 100% Disk Usage), but this issue is really annoying.

    Thursday, April 24, 2014 9:39 AM
  • Having the exact same problem on a computer after the Windows update installed from 8.0 to 8.1. 

    Even after reloading the computer  from scratch.

    The drive activity goes WAY up when booting  - to 100%.  It then seems to calm down but randomly will go up and down throughout the day peaking at 100%. Even when nothing is open except a MSWord page into which  I am typing.

    If other programs are open such as Excel and/or Internet Explorer they will display the file name at the top as usual with (Not Responding) at the end. The screen will fade to an opaque look. This lasts for up to approx. 15 minutes at times and the computer responds to no keyboard or mouse clicks. The mouse pointer on the screen still moves but nothing happens when I click on anything.

    I managed to keep the Task Manager visible and it clearly shows less than 20% memory use and less than 5% CPU use when this occurs. But the HDD is at 100%.

    The fact that it was fine prior to updating to 8.1 indicates an issue with 8.1 to me. Absolutely nothing else has changed on this machine - aside from Windows Update.

    This is a know fault and I hate W8.1. Once it finishes whatever it is doing then there are a bunch of screen flashes as it catches up to what ever and where ever I had clicked with the mouse while it was frozen. It is like it is catching up because W8.1 is causing the HDD to ???????????

    Another issue I encounter is the stupid Automatic Maintenance that cannot be disabled. I have found nothing to accomplish this that actually works no matter what anyone has posted on MS sites. It last rendered my computer today useless for approx. +1 hour today!!! I had been using the computer and it was never idle for more than 1 or 2 minutes but yet it started. It is set to run at 1:00 am but it was only approx. 5:00 pm.!!

    The Automatic Maintenance is not running however, when the computer freezes and uses 100% HDD as indicated by Task Manager.

    Also I can disconnect the computer from the modem or power off the modem and the HDD remains at 100%! So it is not sending nor receiving anything at that time.

    • Edited by IKanIKan Friday, May 02, 2014 3:10 AM
    Friday, May 02, 2014 3:04 AM
  • I all

    Having the exact same problem on a computer after the Windows update installed.

    My problem is solved when I have disable this services : Offlines Files


    Tuesday, May 06, 2014 4:56 PM
  • It's runtime blocker & windows module installer & Disable superfetch in Services.msc. It's not chrome, chrome also bring more % disk usage if you open many tabs.

    Open Task manager> Processes: end task of Module Installer & Runtime blocker...They may appears sometime, close them again. Then windowskey + R > services.msc & stop Superfetch. I say that microsoft should get a fix for this for users that don't know how to do this..I have instal my windows 8.1 3 time to resolve this and my disk usage became 1% and some time up to 22%.

    • I use Avg & Chrome & Mawarebytes at the same time =60% disk usage
    • I use Avg & Advanced Sytemcare & Mawarebytes =100% Disk usage

    Attention Don't instal Advanced system care it's advanced systemcare who brings this to your pc, if you unistal it your disk usage will remain 100%. you should do that i say. Disable etc..

    Wednesday, July 30, 2014 12:45 PM
  • Hi,

    I think I know what causes the problem.

    I have the same problem since last night, I tried all the solution, disabling the superfetch doesn't work, after you disable it the problem will come back after few minutes,

    Increasing/Changing the drive paging file doesn't work too..

    So what is the solution worked for me is,

    1. Download the chipset driver for your laptop from manufacturer website , for ex. ASUS X555LN chipset driver from ASUS.


    2. uninstall  the chipset driver given by windows 8.1, (DONT RESTART YOUR PC AFTER UNINSTALL) *This is important or else your system will crash, REMEMBER DONT RESTART. (Or before you do this make a system restore point for safety)

    3. After uninstalling the chipset driver you'll notice that the drive/memory/and cpu percentage are back to normal. even you let it IDLE for hours. or run Programs. AGAIN DONT RESTART OR POWER OFF.

    4. Then Install your new chipset driver that you downloaded from the manufacturer website of your laptop. (Then everything will work fine)

    WARNING : this is risky, I know for some reason that my system will crash if I done it wrong but I try it . please follow the step.


    ENJOY ! =)


    Wednesday, March 04, 2015 12:56 PM
  • I have a better solution instead of risking uninstalling chipset driver. I will Upload a video on YouTube on how to  fix the problem.. I guarantee a 100% that this will work on all the devices . =) I tried it here fixing 3 Laptops just now. and they work smooth,

    I send a link of the Youtube video later =)

    Wednesday, March 04, 2015 1:55 PM
  • I hav a simular issue with my laptop. Once started, If I run certain programs the laptop is unresponsive.

    If I have Task manager running it indicates 100% disk usage. I can see no reason for this.

    After some searching, I stopped (but did not disable)  the BITS service and the issue seems to go away.

    However BITS is used by windows update, so is needed I think for windows updates, so I am going to have to stop it as required for now until i find a better solution.


    May also try disableling the superfetch service for simlular reasons.

    Sunday, May 10, 2015 8:36 AM
  • Actually, after using my laptop some more, I can see that stopping BITS and Superfetch does not fix this issue for me. I still get 100% disk usage for a while when I start some programs - like Word.
    Monday, May 11, 2015 10:42 AM