Windows Media Player comes with most versions of Windows, however in recent years Microsoft has dropped support for some older video formats which has made us quite angry. In the case that our videos don't play properly on your computer, we strongly recommend that you download and install the VLC Media Player.
VLC is a great piece of software. It's free, it supports almost every video format, and it's available on a wide range of systems including Windows, Mac, Android, Linux, and more.
Click here to read my complete WalkThru Tutorial on how to download and install the VLC Media Player and make sure that it's associated with MP4 video files on your system.