Hello. I have just build my mom a computer, an im very new to this. I got her a 120g SSD witch i have put windows 7 64bit and her game she plays on it, now im tring to get the 1T HD for storage to work. When i go into my computer it dont show up, but with i isntalled windows 7 i could pick the SSD or the HD so now how do it make it so the HD can be used?