Windows 10: Playing MP4 gives "Package could not be registered"

Discus and support Playing MP4 gives "Package could not be registered" in Windows 10 Support to solve the problem; I get the above error when I try to open a MP4 video file. It plays ok with VLC Player. I cannot set the default video player - it shows "Films and... Discussion in 'Windows 10 Support' started by devdeep60, Mar 4, 2019.

  1. devdeep60 Win User

    Playing MP4 gives "Package could not be registered"


    I get the above error when I try to open a MP4 video file. It plays ok with VLC Player. I cannot set the default video player - it shows "Films and TV". If I try to click on VLC, it does not do anything.

    Do I need to "Repair" the Windows 10? If so, what is the best way please?

    :)
     
    devdeep60, Mar 4, 2019
    #1

  2. Unable to play mp4. file from outloook.

    Trying to play a mp4 file that is an attachment in outlook. when trying to play a MP4 file that is an attachment in outlook. The phone gives me it can not play this video. Now when I pull the file into My vidoes and put it on my phone through zune...
    The file plays. Any suggestion on getting it to stream through....



    Thanks

    Added note I try to put the file up on my Sky drive and it will not play from there.
     
    MarkGreenplate, Mar 4, 2019
    #2
  3. Joergi Win User
    Play MP4 in Media PLayer


    I am using mp4 files myself. Rather heavily. The files I have use the native h264 codecs for video and also something pretty standard for audio and they work. MP4 is a container format and I vaguely remember I once had a file, that did not play.

    I am not a real expert here, but you can try this:

    Download the static Windows version of ffmpeg and check your mp4 file with ffprobe.exe. It will output a bunch of information about that file, including the codecs used inside it. Knowing these codecs is a first step on the way to a solution.
     
    Joergi, Mar 4, 2019
    #3
  4. BulldogXX Win User

    Playing MP4 gives "Package could not be registered"

    Windows media player will not play mp4!

    Who spends $5,000 on a computer to play .mp4s?

    In any case, I have lots of .mp4s and they play well on Windows Media Player. If you've got an .mp4 that won't play, here are two suggestions:

    1- download another copy of the file; and

    2- ask the content provider for help.
     
    BulldogXX, Mar 4, 2019
    #4
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Playing MP4 gives "Package could not be registered"

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