Windows 10 Freezes when dealing with large (75GB) MOV files

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  1. Posts : 72
    Windows 10 Home x64 v1511, many others virtualized

    To dennis298549759
    I cannot test it because I don't have videofiles of that size but you may try this:

    - install MPC-HC or VLC player (both can play MOV files)
    - set it as default program for all media files
    - then try to work with large videofiles.

    There is a small chance that components of these programs may handle Explorer calls instead of system libraries - but it is only my guess.
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  2. Posts : 82
    Windows 10 pro 64bit

    Problem may be with Windows/Microsoft media foundation. Try to disable it and use other codec sets like k-lite (also it includes tool to disable parts of media foundation and includes custom thumbnail generation)
      My Computer

  3. Posts : 43,222
    Win 10 Pro (22H2) (2nd PC is 22H2)

    dennis298549759 said:
    When dealing with large video files (.MOV QT ProRes) that are 60-100 gigs in file size Explorer on Windows 10 Pro/Enterprise (v1607) will often freeze and come to a grinding halt. Physical memory is gobbled up by Explorer, and then all the Virtual Memory.

    The two that don't have the issue are the "N" versions of Win10 Pro/Ent (they don't include Windows Media Player and "related technologies").
    What happens if you remove Windows Media Player from Win 10 Pro?
    Windows 10 Freezes when dealing with large (75GB) MOV files-snap-2016-08-25-10.13.53.jpg
      My Computers

  4. Posts : 8
    Thread Starter

    Thanks for the suggestions guys, I was thinking similar things, some of the things I've tried in my virtual machines:

    - Installed Quicktime
    - Installed VLC
    - Changed file associations
    - Uninstalled WMP
    - Uninstalled every codec on the machine
    - Installed the k-lite codec package
    - Uninstalled Cortana
    - Uninstalled OneDrive
    - Ran the "Microsoft Fix It for Codec Crashes"
    - Tested disabling all unnecessary services (Superfetch, etc)
    - Ran the Codec Tweak Tool from the k-lite package (Cleared font cache, Cleared Icon cache, Cleared Thumbnail Cache, Hid Video Reel Overlay, Hid Filetype Icon Overlay, Disabled Microsoft DTD-DVD Video Decoder, Disabled DXVA Hardware Acceleration, Disabled Microsoft decoders for: h.264, xvid, divx, mp4v, vc-1, h.265)
    - I tested every registry setting at Computer \ HKEY_CURRENT_USER \ SOFTWARE \ Windows \ CurrentVersion \ Explorer \ Advanced

    Those are just some of the things I've tested. Any other suggestions are welcomed. My company's primary function is dealing with large video files so at this point it looks like we will be avoiding further Windows 10 deployments unless they are the "N" version. If you look at what the "N" version excludes (see list at it is just the kind of bloat that could cause this issue.
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  5. Posts : 72
    Windows 10 Home x64 v1511, many others virtualized

    If you have access to both clean installed N and non-N versions, you may try to compare content of registry keys
    and set it similarly to N version - but this will probably completely disable video playback for .mov files.
    Or you may look at values under OpenWithProgids subkey - they refer to other class keys. Try to delete all ShellEx subkeys under all mentioned locations - this should only disable Explorer icons generating.

    Any registry manipulation can be automated using .reg file, .cmd file which includes reg.exe command calls or group policy.
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  6. Posts : 8
    Thread Starter

    valihrach said:
    Great suggestions valihrach, thanks. I tried setting those the same as Windows "N", but there was no change. Then I tried the 'nuclear option' and went though the registry and nuked anything with ".MOV", the issue is still there
      My Computer

  7. Posts : 43,222
    Win 10 Pro (22H2) (2nd PC is 22H2)

    Out of curiosity, where could I get such a file? (video files (.MOV QT ProRes) that are 60-100 gigs)
      My Computers

  8. Posts : 8
    Thread Starter

    dalchina said:
    Out of curiosity, where could I get such a file? (video files (.MOV QT ProRes) that are 60-100 gigs)
    If you wanted to test I think you'd have to make your own, I suspect you'll have a hard time finding files like this on the net - which is probably why this issue is not more well known. ie: One of the QT ProRes files I'm testing with is 91GB for 43 minutes worth of video at 1080p, 185 Mb/s bitrate. Sometimes we deal with 4K files which are even larger.
      My Computer

  9. Posts : 15
    Windows 7

    There are two shell extensions that deal with multimedia content. Thumbnails and the PropertyHandler. You already tried replacing and disabling the first.

    You can disable PropertyHandling through these keys:

    Don't forget to reboot.
    Last edited by klcp; 26 Aug 2016 at 18:12.
      My Computer

  10. Posts : 72
    Windows 10 Home x64 v1511, many others virtualized

    Sad to read the problem persists. Try other workaround - use FreeCommander XE instead of Explorer to copy/move .MOV files.

    Other question - as you know, .MOV is only container and it may include different types of a/v streams. Which device produces these files, are they fully conform to (Apple?) standard? Can you change stream types? And are results the same if files are de/muxed using PC software?

    But the best way is to learn Windows to ignore content of these files...
      My Computer


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