Why not just uninstall it? Then choose which player you want to use and set it as default by going into the settings and choosing which file types to play. It's strictly personal preference.
How do I choose which media player to play trailers? I have windows media, Real Player, and VLC. My computer switched to VLC and I want it switched back to one of the others. Could it be one of the VLC functions I was playing with trying to get the VLC videos to work? Thanks