How Do you Reset the Media player so you can play music and video in Limewire and not realplayer or window media.

LW's media player itself can only play audio. If you're refering to resetting default or making LW media player your player again, go to LW's menu Tools>Options>Player & tick the option box & press apply. This won't take effect until next time you open LW. For video, well ... depends what you want to do. A decent video player is VLC: http://www.videolan.org/vlc/ (choose nearest mirror site) And to change your computer's defaults for which file is played by which program, see Setting Default video app & apply the same principle to whichever file-type you are wanting to change.