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100% Disk Usage

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  1. #11



    Junior Member

    Join Date : Nov 2012
    Posts : 2
    Windows Phone 7.5


    Sorry to jump in, I don't want to hijack the thread... But I'm having the exact same issues with kind of the exact same processes eating up my disk usage, and hanging up windows every now and then.
    If anyone can come up with a solution I'd really appreciate it.
      My System SpecsSystem Spec

  2. #12
    HBHB's Avatar

    Member

    Join Date : Oct 2012
    Posts : 142
    Win8.1 64 bits Ent- Pro


    got news for ya but no easy solution.
    I had same issue running win 8 enterprise on i7 processor, this was driving me nuts for a bit, but that was on my second spare pc so didn't dig too too much.
    For upgrade reason i ended up reinstalling Windows 8 again , but before I fixed up all my partition as I was dual booting Win7 ; and deleted the latter.
    Guess what, I don't notice spikes in disk usage hardly ever, now that I think of it. So I am not sure if dual boot had anything to do with it, or having many partitions.
    I wish I have a better solution, but that is what worked for me.
    Last edited by HBHB; 22 Feb 2013 at 10:50 AM.
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  3. #13
    Hopachi's Avatar

    Polyhedric Stellation


    Join Date : Sep 2011
    Orbiting the Moon
    Posts : 2,884
    Windows 8.1 - 64bit, Others in VMs
    european union


    After a few days of usage I noticed the same behavior as the op states.

    To explain what happens, here is the original screenshot that Nanor posted:
    Click image for larger version
    As you can see, a few programs use just a fraction of the HDD but the disk activity is monitored.
    If you look at the transfer rates, just about 0.5mb spread to 5 programs is enough to produce a 100% activity graph.
    This means that the disk is used but not that a program uses it all. We didn't had this function on Win7 or earlier but the 100% usage came very frequently (you could hear the spinning disks doing something).

    What all this means is that as long as the disk is active, even for 0.01kb transfers, there will be a noticeable activity of the disk.
    When the disk is not used AT ALL, only then we can speak of 0% reports.
    I have a pretty clean, offline Windows 8 pc and had 99% disk activity for 2 processes with 0.1kb transfer. Look at the details in the performance tab, and right click on the disk graph: you'll see that the activity is displayed, not the transfers. Look at the transfers and from 10 up to 100mb/s (some 100% transfer, the max that the disk can give) per process (memory dump from system took 78mb/s here!) usage we can speak of serious issues or data transfers.

    There are no background executables that are not seen because Task Manager in Windows 8 runs as administrator (elevated) by default.
    Sorry I had to find this out myself: go to details tab and choose columns, you can choose "Elevated" and you can see there which program runs as admin (marked with yes).

    The mentioned Process Monitor program seems useful but is not always necessary. If you got a clean stable pc and see 100% activity of disk, look at the transfer rate and usually it's nothing. So if more than 1 process is using the disk even with very low transfers, this can result in 100% activity.

    A long period of 100% activity means that a program or more use the disk constantly or periodically or all at the same time, or just on or two at a time. This can be your browser viewing or you listening to something, checking mails... The pagefile of the system can also use the disk (as I said very low transfer speeds are enough). As long as the HDD (heads are moving) or SSD transfer some data, the 100% activity can be achieved easily so it seems.

    This is NORMAL and we don't have to worry. We'll just have to get used and understand the new Task Manager graphs.
    It's normal for the disk to be used. System is running well.

    If you're still worried and pc might no be as clean as you might want, use Process Monitor as described in a previous post.

    I'm convinced after seeing the graphs myself: 100% activity is not 100% transfer.

      My System SpecsSystem Spec

  4. #14



    New Member

    Join Date : Dec 2012
    Posts : 1
    Win 8 Pro


    Hi, I registered just now to respond here to this thread while looking for an answer to the same problem.
    I too have had the 100% disk usage even though I'm not running anything at all. And for me at least it is not just a cosmetic/graph that is bothering me, the system is really sluggish due to the disk activity. I can see the hard drive light on my pc is lit completely and it sits like that for a few minutes, any attempts to open programs during this time is useless. The hard drive access has slowed my system down to a crawl.

    This is on Windows 8 Pro fresh install on a SSD drive, 2.6 Core i7, 18GB ram with no swap file. I recently removed the swap/page file to see if that would help but it didn't.
    I didn't have this issue with Windows 7 home edition and I'm having a hard time pinpointing the cause.
    Thought I'd give my situation on this problem since I'm sure others are having the same problem.
      My System SpecsSystem Spec

  5.   

  6. #15



    New Member

    Join Date : Jan 2013
    Posts : 1
    Windows 8
    Canada


    I seem to be having the same problem. When I play games my computer will be handling them just fine and then randomly my screen will freeze for 3 - 10 seconds and then fastforward to catch up. I got my computer a week ago and at first I did not have this problem, but it has gotten progressively worse. The last time it got unbearably choppy I opened task manager and saw my Disk usage was at 100% and my whole computer was working extremely slowly. I don't know if this is a Windows 8 issue or an AMD issue (I have an HD 7850). Does anyone know what I can do to fix this problem?
      My System SpecsSystem Spec

  7. #16



    New Member

    Join Date : Jan 2013
    Posts : 1
    Windows 8

    Disk Controller


    Hi All,

    I had the same problem, upgraded an HP probook to Windows 8 and the disk activity was constantly at 100% and the system was unstable. It turned out that the disk controller was an unknown device. Right clicking and updating the driver fix my problem. You may wish to see if this is your issue (find it under device manager, unknown devices)
      My System SpecsSystem Spec

  8. #17



    New Member

    Join Date : Jan 2013
    Posts : 1
    Windows 8 x64


    Very same problem here. The system disk utilization is suddenly 100%, the read/write is 0KB/s, CPU utilization is low, usually few %, and all the opened apps become unresponsive and they sometimes crash. It happens randomly for no reason, but I also can provoke this by opening WhereIsIt as administrator. After minute or two the app process shows up in the task manager and if I kill it, everything goes back to normal.
      My System SpecsSystem Spec

  9. #18



    Junior Member

    Join Date : Jan 2013
    Posts : 2
    Windows 8 x64
    USA us washington

    Possible Solution


    I had this same problem. Disk use read 99-100% so I opened Resource Monitor and saw that svchost.exe was running Disk Defrag in the background. It had, in fact, been "Defragmenting" for over a week without stopping. I simply shut it down in Processes and it seems to have solved the problem. I'm averaging 1-11% Disk use now.
    Try this out and see if it helps you. (Be sure to run Resource Monitor as an Administrator)
    Cheers!
    Last edited by JoeLeF; 24 Jan 2013 at 09:46 PM. Reason: Adding Information
      My System SpecsSystem Spec

  10. #19
    DasaniIV's Avatar

    Junior Member

    Join Date : Feb 2013
    Posts : 6
    Windows 8.1 x64
    USA us virginia

    firmware upgrade


    I was having this issue on my sony viao. I installed a verbatim SDD 128Gb and conducted a mirror image of the drive which was windows 7 using nit cloning software and then I upgraded to windows 8 and everything was fine. I started to load all my old legacy apps then noticed my disk was running 100% after awhile. I had this issue for several months and was searching through forums after forum to resolve this issue. I did all the SDD tips and tricks to optimize drive. i couldnt figure it out... I found another forum that was talking about firmware upgrades (mine was S5FAM014) I followed the instructions from the forum to upgrade my firmware to S5FAM017 and wow my computer woke up from its slumber and everything was just snappier so i believe that fixed my issue. I completed this last night so i am axious to get back on my laptop to see if the problem has been resolved 100%. You will have to clone or sdd to a hdd because upgrading the firmware deletes the sdd data. The site that was on is as follows:

    MyDigitalSSD mSATA, Half Slim, and 2.5 Inch SATA SSD Firmware Update | My Digital Discount (Page 2)

    I really hopes this helps!
    Last edited by DasaniIV; 24 Feb 2013 at 04:24 AM. Reason: definitlymfound my fix
      My System SpecsSystem Spec

  11. #20
    TONSCHUH's Avatar

    Member

    Join Date : Jan 2013
    Wynnum Australia
    Posts : 310
    Windows-8.1 Build 9600-RTM-Pro-WMC-x64
    Australia au queensland


    Quote Originally Posted by Hopachi View Post
    After a few days of usage I noticed the same behavior as the op states.

    To explain what happens, here is the original screenshot that Nanor posted:
    Click image for larger version
    As you can see, a few programs use just a fraction of the HDD but the disk activity is monitored.
    If you look at the transfer rates, just about 0.5mb spread to 5 programs is enough to produce a 100% activity graph.
    This means that the disk is used but not that a program uses it all. We didn't had this function on Win7 or earlier but the 100% usage came very frequently (you could hear the spinning disks doing something).

    What all this means is that as long as the disk is active, even for 0.01kb transfers, there will be a noticeable activity of the disk.
    When the disk is not used AT ALL, only then we can speak of 0% reports.
    I have a pretty clean, offline Windows 8 pc and had 99% disk activity for 2 processes with 0.1kb transfer. Look at the details in the performance tab, and right click on the disk graph: you'll see that the activity is displayed, not the transfers. Look at the transfers and from 10 up to 100mb/s (some 100% transfer, the max that the disk can give) per process (memory dump from system took 78mb/s here!) usage we can speak of serious issues or data transfers.

    There are no background executables that are not seen because Task Manager in Windows 8 runs as administrator (elevated) by default.
    Sorry I had to find this out myself: go to details tab and choose columns, you can choose "Elevated" and you can see there which program runs as admin (marked with yes).

    The mentioned Process Monitor program seems useful but is not always necessary. If you got a clean stable pc and see 100% activity of disk, look at the transfer rate and usually it's nothing. So if more than 1 process is using the disk even with very low transfers, this can result in 100% activity.

    A long period of 100% activity means that a program or more use the disk constantly or periodically or all at the same time, or just on or two at a time. This can be your browser viewing or you listening to something, checking mails... The pagefile of the system can also use the disk (as I said very low transfer speeds are enough). As long as the HDD (heads are moving) or SSD transfer some data, the 100% activity can be achieved easily so it seems.

    This is NORMAL and we don't have to worry. We'll just have to get used and understand the new Task Manager graphs.
    It's normal for the disk to be used. System is running well.

    If you're still worried and pc might no be as clean as you might want, use Process Monitor as described in a previous post.

    I'm convinced after seeing the graphs myself: 100% activity is not 100% transfer.




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    I doubt that your conclusion is right, as my tests result in a different outcome.

      My System SpecsSystem Spec

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