BSOD and freeze up problems

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  1. Posts : 8,383
    Windows 10 Pro x64, Arch Linux
       #11

    faz0222 said:
    CarlTR6 - Kaspersky removing tool could not detect KIS2011 so I've used the basic uninstaller and replaced KIS with Microsoft Security Essentials as you suggested.

    lvpopflt.sys, LVUSBSta.sys, lvuvc.sys are all for my web cam which I could not find any Win7 drivers for so I've unplugged it for now and will buy a new one :-P
    I can't seem to find any installation software for the cam, should I delete those 3x drivers by hand or just leave them ?

    I've found 3x instances of the pcouffin.sys file and was able to rename one to pcouffin.bak in my C:\Users\Anthony\AppData\Roaming folder.
    The 2x other instances are located in C:\Windows\System32\drivers and in C:\Windows\System32\DriverStore\FileRepository\pcouffin.inf_x86_neutral_3aabe1612ec941ae , those are "access denied", is there any way around it ?

    wacommousefilter.sys - I've uninstalled my tablet driver, restarted and installed the latest version.

    "See if you get anymore crashes. If you do, upload the dumps and we will go from there."
    Ok, how do I locate the dumps ? :)

    Thanks
    You could try repairing Kaspersky
      My Computer


  2. Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       #12

    Faz, I didn't recommend disabling usb as a permanent solution. Just a way of isolating where the conflict is. Another option is to disconnect all unneeded usb devices, placing mouse and keyboard on front usbs, then back usbs.
      My Computer


  3. Posts : 11,990
    Windows 7 Ultimate 32 bit
       #13

    It is possible that this outdated driver, LVUSBSta.sys Fri May 11 19:40:49 2007, is responsible for USB crashing.
      My Computer


  4. Posts : 28
    Windows 7 Professional
    Thread Starter
       #14

    CarlTR6 - lvpopflt.sys, LVUSBSta.sys, lvuvc.sys, pcouffin.sys - all renamed to .bak in the drivers folder
    Should I update LVUSBSta.sys (and how) or just keep it as .bak ?

    Lemur - I understand, will this work if I plug all my usb devices onto my external powered usb hub and them plug my hub into 1 usb at a time to try them out ?
    Currently some devices disconnect randomly, my game controller stop working and just blink, my keyboard works every 2 seconds ... etc ...
    It seems that the physical port I plug my hub is irrelevant since when a disconnect occur, only 1 device will disconnect, not all ... just a guess
    Also, it seems to be 100% sure to get a usb disconnection on the initial cold boot, once I reboot for the 2nd time everything runs smoothly... weird ...

    so far no freeze or BSOD but still lots of usb trouble ...
    I'll continue to swap my hub and test each port slowly ,is there anything I can do ?

    Thanks guys
      My Computer


  5. Posts : 28
    Windows 7 Professional
    Thread Starter
       #15

    my computer just froze while playing a game ... no dump file ... is there any way to find out what crashed ?
    before you ask, my display drivers are up to date
      My Computer


  6. Posts : 28
    Windows 7 Professional
    Thread Starter
       #16

    another update ...
    after restarting, my sound died, "No Audio Output device is installed".
    I could not find any uninstaller, so I went to the device manager and uninstalled all the sound controllers marked "!", restarted and installed the updated Realtek HDaudio drivers from MSI.com (my motherboard), restarted again ... and still no audio device detected

    Is that related to the 4x .sys driver I renamed .bak ?? I thought they were for the web cam !

    Also, I have an "unknown device" listed in the device manager under USB controllers.
    "Location Port_#0003.Hub_#0005"
    "Windows has stopped this device because it has reported problems. (Code 43)"
    So I've disabled it and nothing happened, is that a bad port ?

    Any idea what's going on ?
      My Computer


  7. Posts : 28
    Windows 7 Professional
    Thread Starter
       #17

    I've tried to rename the 4x .bak files back to .sys one at a time to restore my audio.
    The Realtech audio was successfully enabled after I renamed LVUSBSta.sys.
      My Computer


  8. Posts : 11,990
    Windows 7 Ultimate 32 bit
       #18

    faz0222 said:
    CarlTR6 - lvpopflt.sys, LVUSBSta.sys, lvuvc.sys, pcouffin.sys - all renamed to .bak in the drivers folder
    Should I update LVUSBSta.sys (and how) or just keep it as .bak ?

    faz0222 said:
    I've tried to rename the 4x .bak files back to .sys one at a time to restore my audio.
    The Realtech audio was successfully enabled after I renamed LVUSBSta.sys.
    Very good troubleshooting work. It is interesting that a camera driver affected your sound. Try to update LVUSBta.sys from this link: Downloads. Also try updating your sound card drivers. I assume your sound card is built in? If so, you can try updating all of your chipset drivers.
      My Computer


  9. Posts : 28
    Windows 7 Professional
    Thread Starter
       #19

    Just to confirm that my realtek HDaudio is using LVUSBSta.sys :

    screenshot of Realtek using LVUSBSta.sys
      My Computer


  10. Posts : 11,990
    Windows 7 Ultimate 32 bit
       #20

    faz0222 said:
    Just to confirm that my realtek HDaudio is using LVUSBSta.sys :

    screenshot of Realtek using LVUSBSta.sys
    Good research! Try to update the driver from this link: Realtek

    If you cannot update the driver, I suggest that you purchase a new sound card that is certified compatible with Win 7. This driver is basically an XP driver and, remember, it was implicated as being part of the crash in some of your dumps.
      My Computer


 
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