If this process does not help to play your MP4 file, download codec pack from VLC official website to play corrupted video file. Now set the output drop-down menu to X11 video output and save the above setting and restart the VLC player.

Check output mode setting to play MP4: Go to video setting in preferences and check the box 'Enable Video' and check for 'Window Decorations'.

Before trying, carry multiple backup of your MP4 files Hence, follow the steps given below to resolve the mystery of unplayable MP4 videos on Windows 10. Surprisingly, VLC player is top recommended to tackle how to play MP4 file on Windows, but still file issues may exist. Before going on to see the solution make sure that file is not corrupted or damaged, because damaged files cannot be played in any of the media player on any platform. If you can't open MP4 file after Windows OS upgrade, the main possibility may be of codec error. MP4 consists of many parts like audio/video codec and subtitles, etc - the core point is codecs.

Any kind of suggestions are welcomed to fix this problem”. I have tried in all other video player and got same error in most of the players but in few player, the video was choppy with fine audio. When I was using Window 8 OS, all files were playing fine without any issues. The player may now support the file type or may not support the codec that was used to compress the file'.

I get a standard error message saying 'Media player cannot play the file. Let us see a scenario in brief: “I upgraded my Windows 8 OS to Windows 10 and now none of my MP4 videos play. Read this article completely to know the exact way out. No need to panic, you just need some technical support on how to play damaged MP4 files on Windows 10 PC. Can't play MP4 file on Windows 10 computer? Well, it is the case where your MP4 video is hard to play when you try to open it.

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