"Can Windows Media Player play MP4 videos? I used to play MP4 videos within Windows Media Player, but recently Windows Media Player won’t play MP4 video any more. What’s wrong with it? Is there any solution to that or free MP4 player for Windows7? Thanks for your time."

Generally, Windows Media Player can play MP4 video files for free, without any additional codec or plugin. However, sometimes there are exceptions. You may find that your Windows Media Player won’t play MP4 or other videos it used to recognize. When this happens, you have 3 options: update your Windows Media Player, install Windows Media Player MP4 codec, or take use of 3rd-party free MP4 player software. This post would show you how to play MP4 on Windows with different solutions.

Part 1: Play MP4 on Windows with MP4 Codec for Windows Media Player

It is extremely easy for you to update your Windows Media Player when Windows Media Player won’t play MP4 files. You simply need to visit the official website of Windows Media Player or Microsoft Store for downloading and installing. However, sometimes this may not fix the "Windows Media Player won’t play MP4 files" problem. In such case, you could download and install MP4 codec for Windows Media Player.


Media Player Codec Pack is a piece of software on either a device or computer capable of encoding and/or decoding video and/or audio data from files, streams and broadcasts. The word Codec is a portmanteau of ‘compressor-decompressor’. It supports almost every compression and file type used by modern video and audio files. With Meida Player Codec Pack installed, you can easily play any video in Windows Media Player. Windows Media Player won’t play MP4 problem would never bother you again. You also don’t need to ask people can Windows Media Player play MP4 files.

Part 2: Play MP4 on Windows with Free MP4 Video Players

Besides installing Windows Media Player MP4 codec, you still get a solution to play MP4 video on Windows. That’s to make use of 3rd-party MP4 video player apps. This wouldn’t be hard for you. Simply search "windows mp4 player" or "mp4 player for windows", you could get multiple options. For your convenience, we’ve collected 5 free MP4 players for Windows users to play MP4 files on Windows.

1. Leawo Free Blu-ray Player

Leawo Free Blu-ray Player is an expert Blu-ray media player that could play Blu-ray/DVD discs, folders and ISO image files, videos (up to 4K), audio files on Windows Vista, XP, 7, 8, 8.1 and 10 without any quality loss and dollar. As free MP4 player, it could play up to 4K MP4 videos without quality loss. During playback, this Blu-ray playback software allows people to adjust subtitles, audios and videos, and even supports to load external subtitles. It delivers high quality video and supports various audio decoding technologies like Dolby, DTS, AAC, TrueHD, DTS-HD, etc. It offers full playback control and detailed navigation to deliver better movie experience. It could play movies of all formats like MP4, AVI, FLV, MOV, WMV, MKV, RMVB, etc. What’s more, it’s a region-free Blu-ray disc player. That means it could play Blu-ray discs on Mac of all disc regions and disc protections. It’s the only free Blu-ray disc player that could play commercial Blu-ray discs for free in the world.

Leawo Free Blu-ray Player for Mac

2. VLC

VLC Media Player is a simple and open source cross-platform media player to playback various type of video file. You can also use it to play DVDs, CDs, VCDs, and various streaming protocols. No codec packs are needed and it’s completely free. You can open double windows if you want to actually view the playlist. It supports nearly all video formats and audio formats for playback, including MP4 format. Currently, it still doesn’t support Blu-ray disc playback. Meanwhile, it is a little delayed while playing. There are multiple complaints on the delayed reply and wrong streaming. It even gets multiple versions for different systems like Windows, Mac, iOS, Android, etc.


3. RealPlayer

RealPlayer is the ultimate media player for users how love downloading and watching videos. The new RealPlayer is the best way to find all the hottest and most user-relevant video content on the web, and the ideal tool for the consumer who wants web video entertainment, but doesn’t want to sift through thousands of videos to find it.

Users can browse videos based on channels like sports, entertainment and news, or just keep their eyes glued to the "New and Popular" section if they want to see the most popular trending videos and stay a step ahead of their friends. Best of all, once users find the videos they love, they can use the great tools and utilities already within RealPlayer to download, convert, bookmark for later or share them with friends.


4. KMPlayer

More than a top MP4 player for Windows, KMPlayer is versatile player software supporting a wide range of container formats covering MPEG-4/2/1, MKV, WMV, FLV, AVI, 3GP, QuickTime, VCD and DVD. Internal codecs of MP4 (MPEG-4/H.264) and other formats included in KMPlayer deliver a quick and efficient way of video playback. Apart from playing general videos, it supports 3D and 4K UHD movies/videos. Meanwhile, it allows users to capture video, audio, screenshots and manage subtitles with ease. Although the latest version of KMPlayer is compatible with Windows 7/8/10, it is suggested to use it on Windows 7 (32 bit) computer for grabbing the best


5. BSPlayer

BS.Player is another free MP4 player for Windows 10/8.1/7, which specializes in playing video and audio in MP4, AVI, MKV, WMV, VOB, MP3, AAC, AC3, WMA etc. It is an easy-to-use and efficient program with low CPU cost to guarantee a certain level of quality video playback even on a less capable computer. The newest version of BS.Player has been developed as all-sided multimedia software to manage video, audio, web-based TV and radio programs and live-streaming. What bothers users is that it may ask you to install BSPlayer ControlBar for subtitle download instead of removed attached adware in old versions.


Part 3: Best Free MP4 Player to Play MP4 Files for Free

If you wonder what is the best MP4 player, the answer might vary since different people have different needs upon best free MP4 player. However, simply from the specifications and performances, Leawo Free Blu-ray Player is without doubt the best MP4 player for you.


Leawo Free Media Player 

☉ 100% free 4K media player to play Ultra HD 4K content, 1080P Full HD video and 720P video for totally free.

☉ Free 4K Blu-ray disc player to play 4K Blu-ray disc, regardless of disc protection and region code.

☉ Support multiple audio decoding systems like Dolby, DTS, AAC, TrueHD, DTS-HD, etc.

☉ Quality lossless image and audio delivering system to produce cinema-like movie experience.

☉ Adjust subtitles, video and audio during media playback for better movie experience.

☉ Full playback control, powerful and practical bonus features.

Free Trial Free Trial

Why Leawo Free Blu-ray Player is the Best Free MP4 Player?

1. This free media video player is 100% free. You could use it to play any media in any format for totally free. No in-app purchase or other kind of cost required.
2. Besides acting as free 4K video player, it’s region-free 4K Blu-ray player software to play 4K Blu-ray disc, regardless of disc protection and region restriction.
3. Free media video player to play up to 4K UHD/1080P Full HD video without quality loss in any format, including 4K MKV, 4K MP4, HD MP4, HD AVI, etc.
4. Select subtitles and audio tracks, even add extra subtitles. Deliver cinema-like movie experience with support of various advanced audio decoding technologies like Dolby, DTS, AAC, TrueHD, DTS-HD, etc.

Video Demo – How to Play MP4 on Windows with Leawo Free Media Player: