How to play .mp4 video files with Windows Media Player

You download some video files with extension ending with .mp4 format, which is MPEG4 video. If you play it with Windows Media Player, you may only hear sounds but no videos on screen. The player also displays the error that you will need to download codec for Media Player, when you click the link and it will redirect you to Microsoft website. The codec from Microsoft site will not help.

To play MPEG4 format files in Windows Media Player, you will need to download codec files such as K-lite Mega Pack which contains most of the decoder to play different formats video files.

There are many websites you can download the K-lite codec.

The K-Lite Codec Pack is a collection of DirectShow filters, VFW/ACM codecs, and tools. Codecs and DirectShow filters are needed for encoding and decoding audio and video formats. The K-Lite Codec Pack is designed as a user-friendly solution for playing all your audio and movie files. With the K-Lite Codec Pack you should be able to play all the popular audio and video formats and even several less common formats.

Download K-lite packs

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