Windows 8 and 8.1 Forums

Windows 8.1 explorer.exe suddenly crashing about every 2hr

  1. #1

    Posts : 7
    Windows 8.1 x64

    Windows 8.1 explorer.exe suddenly crashing about every 2hr

    Ever since March 12th, 6pm, explorer.exe on my Windows 8.1 computer has been crashing about every 2 hours (or occasionally longer). I first explored the event logs, and found that every crash has (approximately) the same crash log. Here is the first:

    Log Name:      Application
    Source:        Application Hang
    Date:          3/12/2015 6:05:59 PM
    Event ID:      1002
    Task Category: (101)
    Level:         Error
    Keywords:      Classic
    User:          N/A
    Computer:      Eric-PC
    The program Explorer.EXE version 6.3.9600.17667 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Action Center control panel.
     Process ID: 1624
     Start Time: 01d05cde63b1f5e1
     Termination Time: 0
     Application Path: C:\Windows\Explorer.EXE
     Report Id: 897de8e2-c914-11e4-8277-74d435e7fd44
     Faulting package full name: 
     Faulting package-relative application ID: 
    Event Xml:
    <Event xmlns="">
        <Provider Name="Application Hang" />
        <EventID Qualifiers="0">1002</EventID>
        <TimeCreated SystemTime="2015-03-13T00:05:59.000000000Z" />
        <Security />
    A few of the <Data> fields change, as well as the timestamps, and the <Binary> field maps to "U.n.k.n.o.w.n.....". Also, sometimes "explorer.exe" is in all lowercase, sometimes not.

    Prior to each crash, explorer.exe's CPU usage will go up to about 15% every time I interact with the taskbar, then go back down to zero if I do nothing (and back up to 15% on the next click, etc.), until eventually it hangs. It's worth noting that even when the taskbar hangs, I can still use any open Explorer windows just fine, until the actual crash.

    I went back through my installed programs to see if anything had been installed recently. My previous restore point was for March 8th, so nothing major had been installed after that. I installed the game Cities: Skylines on the 10th of March (and didn't use my computer on the 11th). I hardly think this is related, though.

    I also noticed that CCleaner listed "Microsoft OneDrive" as being installed on the 12th, probably via some Windows Update package. I thought this might be related after some Googling which told me that Explorer crashes are usually caused by shell scripts. I attempted to perform an uninstall via CCleaner, but it seems that it just removed it from the list. It didn't give me an uninstall prompt, but the OneDrive entry is now missing from the list of installed programs.

    None of my storage drives are full, and I haven't been over 50% memory usage or anything to cause that kind of crash.

    Is it possible that OneDrive is causing this? How can I check for sure? And if not, how do I figure out what is causing this so I can fix it?

      My System SpecsSystem Spec

  2. #2

    St. Augustine
    Posts : 388
    windows 8.1 64, LT -Windows 10 Home 64

    I think there is a whole range of things that could be causing your problem. Have you tried running any diagnostics like the sfc /scannow file checker? If not I would do so with Adm. Cmd. Prompt.
      My System SpecsSystem Spec

  3. #3

    Posts : 7
    Windows 8.1 x64

    Quote Originally Posted by gator2013 View Post
    I think there is a whole range of things that could be causing your problem. Have you tried running any diagnostics like the sfc /scannow file checker? If not I would do so with Adm. Cmd. Prompt.
    Thanks for the suggestion, gator. I also forgot to mention that I ran chkdsk on all my discs (even an external), and found nothing.

    When I went to run sfc, it told me that there was a repair pending, and to reboot. I did so, then ran it again, and it says:

    C:\Windows\system32>sfc /scannow
    Beginning system scan.  This process will take some time.
    Beginning verification phase of system scan.
    Verification 100% complete.
    Windows Resource Protection did not find any integrity violations.
    However, I just had another hang/crash. (That's why it took so long to get back to you, had to get home and wait for it to happen again.)
      My System SpecsSystem Spec

  4. #4

    Posts : 7
    Windows 8.1 x64

    I am still experiencing this issue.

    I attempted to use ShellExView to see if any shell extensions had been added or updated around the time the crashing started (March 10-12). There were no non-Microsoft extensions, but several (maybe 30?) Microsoft extensions were updated at this time.

    I have been using ProcMon to attempt to get some verbose data on the issue, but with little luck. I ran it last night prior to a crash at 11:11:49pm. There were no explorer.exe events, however, between 11:11:43 and 11:11:49.6. The ones prior to :43 seem benign enough (very similar to other events that occur during non-crashy periods). I have made a truncated version of the logs and put it on Pastebin: ProcMon listing for 1min before Explorer.EXE hang -

    Barring any major suggestions or developments, I will run ProcMon again tonight on all events (not just explorer.exe), especially since occasionally other applications will crash with it (but not always). I will also possibly try to get a crash/hang dump from ProcExplorer if possible.

    I am still open to any suggestions or insights anyone might have.
      My System SpecsSystem Spec

  5. #5

    Posts : 683
    Win 8.1.1 Pro x64

    Tick this option to see, if it helps.
    Attached Thumbnails Attached Thumbnails capture_03232015_011506.jpg  
      My System SpecsSystem Spec

  6. #6

    Posts : 7
    Windows 8.1 x64

    Quote Originally Posted by TairikuOkami View Post
    Tick this option to see, if it helps.
    Thanks for the suggestion!

    This does nicely keep my file browser open when the crash happens, so I thank you for that. However, it has not stopped the crash from actually happening.

    Other developments:
    I did try disabling all non-Microsoft shell extensions, but to no avail.

    Based on the details in the dumps (provided below), I tried disabling AnyDVD on startup. This did not work, either.

    I was able to get a WER report, crash dump, and a list of ProcMon events that happened during the crash, but I don't know how useful these are. WER, Crashdump, ProcMon events - Explorer.EXE crash - (Raw version on a wide screen is easiest to read.)

    It might be worth noting that the most reliable way to reproduce the crash is by waiting about at least an hour, then opening the system tray and right clicking on various icons repeatedly. With each click, Explorer gets slower and slower, raising CPU usage (though the menus do come up initially), and eventually it just gets overwhelmed and hangs. (Perhaps caused by some slow shell process that Explorer is calling?)
      My System SpecsSystem Spec

  7. #7

    Posts : 4
    Windows 8.1 64-bit

    Do you use a Japanese or Korean IME by any chance?

    I had the exact same problem you are describing. In my case, it was caused by a side effect of the KB3033889 security update released March 10, 2015. The explorer crash only seems to affect computers with Japanese/Korean IMEs.

    The issue is fixed by uninstalling
    KB3033889 (not recommended), or using the following hotfix:

    More information (Japanese): 2015年3

    I hope this helps. This issue drove me crazy for the past week.

    Thanks for the update, Microsoft.
      My System SpecsSystem Spec

  8. #8

    Posts : 7
    Windows 8.1 x64

    Quote Originally Posted by WeakTea View Post
    Do you use a Japanese or Korean IME by any chance?
    I do, yes. The Google Japanese IME. This could easily be the problem; it would explain why I found few threads about this--I was searching in English only, and not many people using those IMEs would post their issue in English.

    I have applied the hotfix you provided and will see soon enough whether it worked or not.
      My System SpecsSystem Spec

  9. #9

    Posts : 7
    Windows 8.1 x64

    Unfortunately, as much as I wish that had fixed it (it really seemed to be the right answer...) I just experienced another crash with the same symptoms (after installing the hotfix and later rebooting manually).

    I may attempt uninstalling KB3033889 in lieu of any other suggestions, or perhaps just uninstalling my IME temporarily.
      My System SpecsSystem Spec

  10. #10

    Posts : 4
    Windows 8.1 64-bit

    I'm surpised that didn't work.

    Just to be certain: you extracted the hotfix and executed Windows8.1-KB3048778-x64.msu, correct?
    You might also try disabling fast startup in Power Options, and perform a full, complete shutdown and restart.
      My System SpecsSystem Spec

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Windows 8.1 explorer.exe suddenly crashing about every 2hr

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