I recently installed WoW on my new laptop but when I got to the Burning Crusade expansion discs I had to shut the laptop down. I did this without exiting the BC installer. When I rebooted the laptop and tried to return to installing BC it would not allow me to and claimed BC was already installed even though i had only gotten to the second install disc. I uninstalled WoW from the laptop and attempted to reinstall it. I reinstalled all the original WoW discs successfully but when I got to the BC discs it would not allow me to install them a window popped up, as it had before, stating "Burning Crusade is already installed". I know that it is not because when I open WoW the log in screen is not the one from burning crusade it is merely the original one. Does anyone have any tips on what I can do to fix this?