Working on getting a new computer, upgraded to WLK last night, and my HD only has 5 gigs empty on it (shitty 75 gig hd) so im having problems cause it says it needs 15 gigs hd room to install it, well i know damn well it doesnt need a total of 27 gigs for the game, so do i need to just uninstall wow and install it from the download page??