Frequent unresponsiveness, 100% hardware disk usage, 0% software usage

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  1. Posts : 21
    Windows 7 Ultimate x64
       #1

    Frequent unresponsiveness, 100% hardware disk usage, 0% software usage


    Every 10-40 minutes, the application I'm currently working in [whither it be skype, L4D2, or firefox] becomes unresponsive, and after a minute or two, the window turns white, notifying me that it's not responding. This unresponsiveness quickly spreads to other open processes, rendering them frozen as well. I can still use the mouse, and it appears rainmeter still responds [updates, showing barely any CPU usage].

    Steps I've taken to try and resolve this:
    Using only one main program, still does it
    turning the computer off and on again
    Memtest is clean
    chkdisk passes
    MBAM/MSE scans return nothing
    defragged
    no memory overflows that I can see

    While troubleshooting, I noticed that during the 'fit of unresponsiveness' the disk usage light on my tower is solid, but when I looked at the disk usage in the resource monitor, no processes whatsoever were using it [screenshot related]

    If any more specifications are needed, I'll be happy to elaborate.


    Thanks!
    Attached Thumbnails Attached Thumbnails Frequent unresponsiveness, 100% hardware disk usage, 0% software usage-no-disk-use.png  
      My Computer


  2. Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       #2

    It could be indexing. What if you turn off indexing just as an experiment?
      My Computer


  3. Posts : 21
    Windows 7 Ultimate x64
    Thread Starter
       #3

    I've disabled it long ago. I use everything now.
      My Computer


  4. Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       #4

    Try running msconfig, then diagnostic startup. See if you have any problems.

    You can also look at startup in msconfig, and temporarily uncheck these.
      My Computer


  5. Posts : 21
    Windows 7 Ultimate x64
    Thread Starter
       #5

    Doing so seems to have fixed the problem, though there wasn't much to do to check if it would happen again, since there's nothing to do in diagnostic mode.
      My Computer


  6. Posts : 5,092
    Windows 7 32 bit
       #6

    If it flares up again you may look to see if any of these are enabled:

    WMP sharing media files over the network

    WMP logging the location of every media file on your system in case you might want to add it to the library at some future date(I'm not kidding.)

    Network shares set up to run in offline mode(local copy is cached so the system keeps checking the remote copy for changes.)

    Some application monitoring a large folder for changes, such as the Windows folder.

    Also you may try disabling or opting out of the Customer Experience Program. The system gathers all kinds of stats(I forget if this is in W7. I know I had to turn it off in Vista.)

    Vista my drive churned something fierce. Windows Seven the problem was diminished but it still calmed down after some tuning.
      My Computer


  7. Posts : 21
    Windows 7 Ultimate x64
    Thread Starter
       #7

    I never use WMP, so I would doubt that it's starting any shenanigans right now. As for something indexing or searching, firefox could be the culprit, as a while ago I created a ramdisk for it to use as a cache, and now the ramdisk is gone. I looked back to change the cache location to default, but the bit I changed seems to be gone. That's the only thing I can think of off the top of my head.
      My Computer


  8. Posts : 5,092
    Windows 7 32 bit
       #8

    That's the thing about WMP. It was being started by a service in the background to index the media files to share over the network. Even though I never clicked on it and set other players as default player. I finally got the settings to the point I can use WMP if I want. Version 12 has PGS and XSub subtitle support. So on occasion I'll take a quick view with it to check subs.

    I used to run Firefox portable out of a Ramdisk totally. Not just the cache. Best way is to discard the Ramdisk contents on system shutdown. Use XCopy to copy the Firefox portable folder contents recursively into the Ramdisk at logon(you can find the batch file if you search the web.)

    Only real downside is you have to start FF portable from the HD folder if you want to store any settings changes or install AddOns. But it loads quickly even if the HD is busy from the Ramdisk. Kind of fun, but then I moved to Chromium. Even with multiple processes I start Chromium with a blank page so it loads fast if HD is busy.

    Some people just load the browser and leave it open. But that would be cheating. :)
      My Computer


  9. Posts : 21
    Windows 7 Ultimate x64
    Thread Starter
       #9

    Do you know which service it was that was causing the problem?

    Edit: My problem isn't solved yet. When I said it seems to have fixed it, I meant that the problem didn't occur in diagnostic mode, from what I could tell.
      My Computer


  10. Posts : 2,528
    Windows 10 Pro x64
       #10

    If you're willing to bugcheck your box "for science", you can set it to be crashed manually via the keyboard. Once you set the appropriate CrashOnCtrlScroll registry value for either a PS/2 or USB keyboard (depending on what's attached to your computer) and configuring your machine for a complete memory dump, you should reboot for the changes to take effect. Then, the next time your machine goes into such a state, you can simply hold down the right-hand CTRL key on your keyboard and press the SCROLL LOCK key twice to bugcheck the machine (on purpose, of course). This will generate a rather large memory.dmp file in %windir%, but that can be zipped up using 7zip or WinRAR to a much smaller size, at which point the zipped file can be uploaded somewhere for us to download and analyze the hang condition.
      My Computer


 
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