You receive a codec error message, or audio plays but video doesn't play when you play media files in Windows Media Player 11 -us/troubleshoot/windows-client/shell-experience/media-player-11-not-play-video
You receive a codec error message, or audio plays but video doesn't play when you play media files in Windows Media Player 11 -us/troubleshoot/windows-client/shell-experience/media-player-11-not-play-video