Reset Windows Media Player File Associations.

We have a lot of different media file, like mpeg, mp3, avi, midi. First time you install Window XP, the default file player is Window Media Player, then later on you also install different media player. If you have lost the file associations for Windows Media Player (WMP) and WMP no longer plays your music or video files, and you want make WMP as your default media player again follow these steps:

1. Open Windows Media Player.
2. Select Tools Options.
3. Click the File Types tab.
4. Click Select All, note: if you want to specify only some file associate with WMP then make sure you give a check mark on each file that you want to associate with WMP.
5. Click Apply.
6. Click OK.