Media Player Refuses to play files

1. I have a problem with my media player because it won’t play anything.
2. I am using Windows 7 32bit and my media player will not play any files at all be that a video or audio. It is not something that started off from the start in fact it started a few days back.
3. I looked up media player on Microsoft website and they only seem to have that available for windows XP users. I just need to know how to uninstall my windows media player because I can’t seem to find it in the control panel.
Thanks in advance for any help.
