Why KMPlayer Doesn’t Play MP4 Movie Files? Fixed!

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KMPlayer is a media player which has seen a lot of improvements in the past few years. It offers a stupendous amount of audio and video processing related features, eye-candy GUI, (the now recently added) 3D video playback support and a powerful rendering engine. KMPlayer is designed to be user-friendly and offers a gorgeous looking UI design. The latest version of KMPlayer is KMPlayer So if your KMPlayer does not play MP4, first try to upgrade it to the latest edition. Still have issues when playing MP4 files on KMPlayer? Hold on reading…


Why KMPlayer Doesn’t Play MP4 Files

Kmplayer Error Mp4 may be caused by a number of different reasons. The problem that KMPlayer cannot play MP4 files can be caused by several factors including the lack of MP4 codec pack, the settings on your computer, based on which solutions for how to solve “KMPlayer doesn’t play MP4” prob will be divided into two parts.

Part I: Solve “KMPlayer Doesn’t Play MP4” Problem By Adjusting Computer Settings

Surely KMPlayer is capable of playing .mp4, .mkv and .flv videos. But if your installed KMPlayer doesn’t work or can’t open MP4, FLV or MKV files, probably your computer lacks the codec to play these videos. So to solve the “KMPlayer doesn’t play MP4” problem, you can try to activate Script Active X of Windows by doing as follows:

1. Click the Start Menu, type “Internet Option” in the search box and open it up.
2. Choose Security -> Click Custom level -> Find “Script ActiveX controls and plug-ins” -> Select Enable for all under this category -> Click button OK to close the window.
3. Uninstall Adobe Flash Player and get it reinstalled. That’s it. And then you should be able to use your KMPlayer to watch MP4 videos.

Part II: Convert MP4 Files to KMPlayer Supported Video Formats

To solve and avoid “KMPlayer won’t play MP4 or other videos” issues, you can try the all-in-one Pavtube Video Converter Ultimate to convert videos to other formats supported by your player, like MP4, AVI, WMV, and more. Not only can it convert videos to solve KMPlayer not working problems, it can also convert videos to popular devices like iPhone, iPad, edit videos, download online videos from 300+ sites, make photo slideshow videos, etc. Below is a step-by-step tutorial on how to achieve the desired results using this software. Here is review.

Free Download and trail:

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Other Download:

– Pavtube old official address: http://www.pavtube.cn/blu-ray-video-converter-ultimate/
– Cnet Download: http://download.cnet.com/Pavtube-Video-Converter-Ultimate/3000-2194_4-75938564.html

Note: This Top KMPlayer MP4 Converter will keep all your video files in good shape and make them more accessible by 5KPlayer, KMPlayer, VLC, Windows Media Player, MPlayer, QuickTime Player and any other pop multimedia players, as well as video editing tools, for example, convert MP4 to MKV, AVI to WMV, H.265 to MP4, MTS to FLV, and MKV to iPhone, iPad etc. For Mac users, iMedia Converter for Mac is a helpful app to encode videos for further usage.

Fix “KMPlayer Doesn’t Play MP4” Error By Using KMPlayer Alternatives

Step 1. Load MP4 Video Files

Launch the MP4 to KMPlayer Converter; click “Add” and load your MP4 or MKV, AVI, FLV, WMV Video files. Or directly drag and drip your Video/Movie source to the program.

Step 2. Choose output format

Press the drop-down box named “Profile” and select a format you need for KMPlayer. There are several options that include MPEG-2, WMV, MPEG-4, MKV and many others each designed with their own encoding types.


Step 3. Start MP4 to KMPlayer conversion

Hit “Convert” button to start downscaling and encoding MP4 or MKV, AVI, FLV, WMV Video files for KMPlayer. After the conversion, tap the Open icon in the main interface and you can locate the converted files there. Just add the files to your KMPlayer, and you can play the converted Any MP4 videos on KMPlayer easily without any issues. Enjoy your Ultra HD life.

About Pavtube Video Converter Ultimate:

Recently, the leader of multimedia software application Pavtube Studio has upgraded its top-ranked Pavtube Video Converter Ultimate to version with supporting the most advanced hardware acceleration NVIDIA CUDA & AMD APP by H.264/H.265 codec, which can give users 30x video transcoding speed than before. Read the detail: Pavtube Video Converter Ultimate Up to Supporting H.265 NVIDIA CUDA & AMD APP Acceleration.

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About the Author: John Salley

Travel, photography, movies, music, production is my hobby. I will share everything useful articles I think.

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