

Windows XP’s Windows Media Player 9, 10 and 11 will not play the MP4 file format. You will receive an error message that the selected file has an extension that is not recognized by Windows Media Player with an option to continue to play, but you’ll receive another error message that Windows Media Player cannot play the file due to a corrupted file or because the player does not support the format.īelow, you’ll find the steps for how to play MP4 files in Windows Media Player for XP, Vista and Windows 7.


By default, the Windows Media Player by Microsoft does not play the MP4 file type. People who enjoy video and audio streaming will notice that only certain media players can play MP4 files. Most digital audio and video recorders in mobile phones and similar devices will save recorded videos in MP4 file format or file extension.
