Here are a few techniques to help you playing. When you're encountering playback problems with Windows Media Player does not play MP4 videos correctly, don't give in to the frustration. There can be obscure error codes, audio or video playback issues, corrupted file problems, or invalid file format. Yet, sometimes the native Windows Media Player cannot play MP4 file. MP4 is a standardized video file format that almost all devices and video players support MP4s. What could be the reason and how to fix the playback issue?
But some MP4 files are not playing on Windows Media Player, but can be played in all other players like VLC, KM player, etc.
What to do when MP4 Is not playing on Windows Media Player
