Why does Microsoft not know how to play a mp4 video file in my email?
Cannot Play MP4 Videos in Microsoft Teams
![FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]](https://cdn.windowsreport.com/wp-content/uploads/2018/01/windows-10-cant-play-mp4-windows-media-player-1.png "FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]")
FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]
How to play MP4 files in Windows 10
![FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]](https://cdn.windowsreport.com/wp-content/uploads/2018/01/windows-10-cant-play-mp4-control-panel-3.png "FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]")
FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]
![FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]](https://cdn.windowsreport.com/wp-content/uploads/2021/01/cant-play-mp4-on-windows-10.jpg "FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]")
FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]
![Fixed] MP4 File Not Playing Windows/Mac/iPhone/TV, etc.](https://www.winxdvd.com/seo-img/play-video/video-not-playing.jpg "Fixed] MP4 File Not Playing Windows/Mac/iPhone/TV, etc.")
Fixed] MP4 File Not Playing Windows/Mac/iPhone/TV, etc.
![FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]](https://cdn.windowsreport.com/wp-content/uploads/2018/01/windows-10-cant-play-mp4-update-2.png "FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]")
FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]
![Solved] VLC Can't Play MP4 on Windows/Mac? Best VLC MP4 Solution](https://www.5kplayer.com/video-music-player/img/5kp-vlc-mp4-zjy-001.jpg "Solved] VLC Can't Play MP4 on Windows/Mac? Best VLC MP4 Solution")
Solved] VLC Can't Play MP4 on Windows/Mac? Best VLC MP4 Solution
How to Fix MP4 Video Not Playing - Crast.net
![MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS](https://www.easeus.com/images/en/screenshot/video-repair/vlc-open-file.png "MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS")
MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS
/mp4-file-2622024-0696f84c87af4dc39758105c81785dd6.gif "How to Open, Edit, & Convert MP4 Files")
How to Open, Edit, & Convert MP4 Files
How to Play Mp4 Videos on a PC: 11 Steps (with Pictures) - wikiHow
![Solved] MP4 Not Playing on Windows 10 VLC/WMP/QuickTime](https://www.5kplayer.com/video-music-player/img/5kplayer-mp4-player.png "Solved] MP4 Not Playing on Windows 10 VLC/WMP/QuickTime")
Solved] MP4 Not Playing on Windows 10 VLC/WMP/QuickTime
![How to Fix MP4 File Not Playing In Windows Media Player [2022]](https://www.rescuedigitalmedia.com/wp-content/uploads/2021/08/Mp4-File-Not-Playing-In-Windows-Media-Player-copy-1.png "How to Fix MP4 File Not Playing In Windows Media Player [2022]")
How to Fix MP4 File Not Playing In Windows Media Player [2022]
What to Do When MP4 File Won't Play on Windows Media Player - Technology in our view
How to Play Mp4 Videos on a PC: 11 Steps (with Pictures) - wikiHow
How to Play Mp4 Videos on a PC: 11 Steps (with Pictures) - wikiHow
MP4 Video Stopped Playing in Middle？Try This!
![MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS](https://www.easeus.com/images/en/screenshot/video-repair/vlc-select-file-folder.png "MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS")
MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS
![Solved] VLC Can't Play MP4 on Windows/Mac? Best VLC MP4 Solution](https://www.5kplayer.com/video-music-player/img/seo-play-video.png "Solved] VLC Can't Play MP4 on Windows/Mac? Best VLC MP4 Solution")
Solved] VLC Can't Play MP4 on Windows/Mac? Best VLC MP4 Solution
Ways to Play MP4 on Mac When QuickTime Player Can't Open MP4
VLC Not Playing MP4 Videos – How to Fix?
![FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]](https://cdn.windowsreport.com/wp-content/uploads/2018/01/windows-10-cant-play-mp4-windows-media-player-2.png "FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]")
FIX: Windows 10/11 can't play MP4 files [VLC, Media Player]
What to Do When Windows Media Player Not Playing MP4?
![MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS](https://www.easeus.com/images/en/screenshot/video-repair/wmp-select-location-open.png "MP4 File Not Playing [Fixed] with 3 Advanced Solutions - EaseUS")