Vista unexpected shutdowns, memory dumps says ntoskrnl.exe probably to blame

By KathR
Sep 25, 2008
  1. Hello,

    I'm new here, wondering if anyone could help with a problem I'm having please.

    Been having a problem with unexpected shutdowns on a Vista PC. I have attached a text version of the minidump file which says the error is Probably caused by : ntoskrnl.exe. The other relevant piece of info it gives is:
    BugCheck 9F, {3, 86a7c190, 84b99030, 867da578}

    but I have attached the whole file.

    Many thanks for your help

  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Best to post the dmp file itself in future. Otherwise just download the 100meg of Symbols for your Windows version.

    This one Minidump (well txt file) doesn't help much, in what the fault is.
    But in most cases, it's just a matter of updating all your device drivers, and Windows security updates. And possibly running Memtest on your Ram.

    Once that is all done, wait for the next Minidump (hopefully never comes) and post the actual DMP file
  3. KathR

    KathR TS Rookie Topic Starter

    here's the .dmp file, thanks

    thank you for the advice. I will certianly try that. Here is the dmp file though if that can give any more clues.
  4. nickc

    nickc TechSpot Paladin Posts: 923   +11

    did u forget to attach as I see nothing.
  5. KathR

    KathR TS Rookie Topic Starter

    sorry here it is

    had to zip it as the dmp file was bigger than the max allowed size
  6. woody1191

    woody1191 TS Rookie Posts: 572

    Seems not having those Symbol Files made a Difference with them it cited a USB Driver for Windows "usb8023x.sys".

    Do you use anything connected to your Computer via USB?

    Try updating your USB Drivers in Device Manager and see if that helps the Problem.

    Also have you had anymore Bluescreens or Unexpected Shutdowns since your Original Post?
  7. KathR

    KathR TS Rookie Topic Starter


    Hi thanks for your reply.
    No, haven't had any more problems since last week. I did go through device manager and update drivers, but might not have done all the USB ones so will check. Yes I do use a smart phone which when I'm at my desk I sync through a USB lead.

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