intermittent BEX64 explorer.exe crash Solved

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  1. Posts : 11
    Windows 10 Home
       #1

    intermittent BEX64 explorer.exe crash


    Hello folk,

    Would very much like some thoughts on the following. Hopefully anyone has clues or tips.

    On a fully updated and legally activated system with careful installation of 3rd party software there is an intermittent crash of explorer.exe in both Windows 10 Pro as in Windows 10 Home, which is the present OS. As far as my logic goes it can only be caused by 3rd party software, unless Windows 10 is inherently buggy?
    The good news is Explorer recovers instantly without any actions needed. Can continue working.

    Happens when:
    Unclear but seems random. Last crash was when opening a folder.

    Already done:
    sfc /scannow (ok)
    Dism /online /cleanup-image /restorehealth (ok)

    Unlikely cause:
    Several context menu entry removals (from Brink's tutorials)


    Here the event info in Dutch which is exactly the same in the 3 crashes this month:

    Naam van probleemgebeurtenis: BEX64
    Naam van de toepassing: Explorer.EXE
    Versie van toepassing: 10.0.18362.145
    Tijdstempel van toepassing: 8a1c1adf
    Naam van foutmodule: StackHash_9147
    Versie van foutmodule: 0.0.0.0
    Tijdstempel van foutmodule: 00000000
    Uitzonderingsmarge: PCH_D0_FROM_ntdll+0x000000000009CBB4
    Uitzonderingscode: c0000005
    Uitzonderingsgegevens: 0000000000000008
    Versie van besturingssysteem: 10.0.18362.2.0.0.768.101
    Landinstelling-id: 1043
    Aanvullende informatie 1: 9147
    Aanvullende informatie 2: 9147ad64d9a57077d2f68e2ed750d935
    Aanvullende informatie 3: ac8e
    Aanvullende informatie 4: ac8e188d77783fc278a3c9493613cb54

    Extra informatie over het probleem
    Bucket-id: 9ef693b93a331a7d9b1b305a45affaef (1953208027669592815)


    Thank you
    dm
      My ComputerSystem Spec

  2. dalchina's Avatar
    Posts : 19,953
    Win 10 Pro (1903)
       #2

    For reference- apologies you probably already know this:
    What are BEX errors in Windows? - Quora

    It's almost inevitably associated with a 3rd party program hooked into file explorer.
    Consider anything that modifies file explorer in any way (e.g. adds buttons, quick access to favourites, changes appearance of the GUI...) and any context menu entry.

    You can start by disabling all non-MS context entries, starting with Shellexview (free), and then seeing if the same occurs.

    You may find further such entries using the more technical Autoruns (free from MS) where the listing is divided into clear sections to help you find those.

    Do not disable MS entries- these programs help you to hide those.


    Related:
    intermittent BEX64 explorer.exe crash-snap-2019-06-19-06.47.17.png
    - it would be wiser not to use the exception option.
      My ComputersSystem Spec

  3. Anak's Avatar
    Posts : 871
    10 Home 64-bit | v1903 | Build - 18362.356
       #3

    Hi dinkymau, Welcome to 10F!

    BEX refers to Buffer Overflow Exception, see:
    http://technet.microsoft.com/en-us/l...83(WS.10).aspx

    And you're right it most likely has to do with your 3rd party programs. I'm trying to think which way would be the easiest to check this.
    • You could try running in safe mode to see if bex shows up or
    • You could disable your 3rd parties one by one to see who the offender is or
    • You put you 3rd parties on the DEP whitelist or
    • If you find the offender reinstall it with win 7 compatibility mode.

    One thing for sure, make sure everything, everything is up-to-date!

    It would be very helpful if you could fill in your System Specs: System Specs - Fill in at Ten Forums
      My ComputersSystem Spec


  4. Posts : 11
    Windows 10 Home
    Thread Starter
       #4

    Thank you for the helpful answers. Had hoped the event information would point to the cause more precise.

    I never considered DEP exceptions before. I know and trust my 3rd parties so adding some seems useful.
    The safer route is to start disabling or exchanging 3rd party action least familiar with. Here goes !
      My ComputerSystem Spec

  5. dalchina's Avatar
    Posts : 19,953
    Win 10 Pro (1903)
       #5

    You can experiment trying to identify the problem program e.g. with appcrashview or the potentially daunting Process Monitor

    https://docs.microsoft.com/en-us/sys...nloads/procmon

    but you could end up wasting a lot of time esp with the latter.

    The first depends on a wer being reported, which may not be the case but is quick to try.
    Download AppCrashView 1.35
      My ComputersSystem Spec

  6. EdTittel's Avatar
    Posts : 3,500
    Windows 10
       #6

    If I were in this boat, I'd look at Nir Sofer's ShellExView (visit nirsoft.net and search for it by name). You can look for unexpected or unwanted Shell Extensions in Explorer and disable or delete them pretty easily using this nifty little tool.
      My ComputersSystem Spec


  7. Anak's Avatar
    Posts : 871
    10 Home 64-bit | v1903 | Build - 18362.356
       #7

    Thanks for working on your system specs dinkymau.

    There's a couple of items you need to know about if you're going to use event viewer.
    First you need to make sure WER (windows error reporting) is enabled, you can check that using this tutorial: Enable or Disable Windows Error Reporting in Windows 10
    You may only have to check to see if it is enabled, I believe it's default is enabled.

    Then, even though you may get event viewer to load there has been some problems reported using it. You haven't listed the build and version of your win10 OS but this started with June's Tuesday's updates:
    Event Viewer may close or you may receive an error when using Custom Views
    When trying to expand, view or create Custom Views in Event Viewer, you may receive an error and the app may stop responding or close.

    See details > OS Build 18362.175 June 11, 2019 KB4503293 Mitigated June 13, 2019 02:21 PM PT
    And lastly: If you're unsure how to open event viewer you can use this tutorial to open event viewer: Read Chkdsk Log in Event Viewer in Windows 10
    Yes, it is designed to check the logs for CHKDSK but you would still have to follow the steps in Option One to check the logs for your 3rd parties but instead of looking for CHKDSK you're looking for your programs.

    Thanks goes to dalchina for mentioning appcrashview, I hope it works for you.
      My ComputersSystem Spec


  8. Posts : 235
    Windows 10 X64 latest
       #8

    One culprit maybe the comodo. Do u tried without it?
      My ComputerSystem Spec

  9. Anak's Avatar
    Posts : 871
    10 Home 64-bit | v1903 | Build - 18362.356
       #9

    Good eye there boombastik, for a test dm could turn off comodo and just run defender with firewall and see if things improve.
      My ComputersSystem Spec


  10. Posts : 11
    Windows 10 Home
    Thread Starter
       #10

    Thanking you all.

    From msinfo32 the version reads 10.0.18362 Build 18362

    Tried AppCrashViewer but no reports are shown. WER is enabled. Because the crashes are this far apart I do not know how ProcessMonitor could help me. As for ShellExView a few are on my list to be tried disabled.
    One surprising now disabled leftover after removal of AIMP is AIMP ShellExt Unit.

    Complete removal of Comodo and inspection of 3rd parties in Event Viewer is duly noted!

    I forgot about O&O ShutUp custom settings where a couple of Explorer related options were disabled.
    I guess these five are also a good idea for defaulting to again. Latest version is installed.
    Attached Thumbnails Attached Thumbnails intermittent BEX64 explorer.exe crash-su.jpg  
    Last edited by dinkymau; 21 Jun 2019 at 02:29.
      My ComputerSystem Spec


 
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