CoDecs are the information needed to play a video. CoDec stands for “compress – decompress.” When a video is played, the computer needs the “decompress” information that matches the way it was “compressed” to play it. Sometimes, in troubleshooting video playback issues, it is good to see a list of the CoDecs installed on a computer.
To locate a list of all Codecs installed on your Windows 7 system for playing audio and video, first begin by opening Windows Media Player.
![CoDecs 1](https://thepowerpointblog.com/media/blogs/all/2014/14_May/codec_1.jpg?mtime=1398628983)
If there is no menu bar, click on Organize > Layout > Show menu bar, in the upper left-hand corner.
![CoDecs 2](https://thepowerpointblog.com/media/blogs/all/2014/14_May/codec_2.jpg?mtime=1398628989)
In the menu bar, select Help > About Windows Media Player
![CoDecs 3](https://thepowerpointblog.com/media/blogs/all/2014/14_May/codec_3.jpg?mtime=1398628994)
If prompted with a warning dialog box to notify you the program is protected under copyright law and international treaties, click Technical Support Information in the lower left-hand corner.
![CoDecs 4](https://thepowerpointblog.com/media/blogs/all/2014/14_May/codec_4.jpg?mtime=1398628999)
A page will open in your default internet browser with details of the Codecs used along with other system information.
![CoDecs 5](https://thepowerpointblog.com/media/blogs/all/2014/14_May/codec_5.jpg?mtime=1398629005)
– Troy @ TLC