I just bought a new gaming computer it has a 128 ssd and a 2tb sata harddrive. The ssd has windows 8 installed on it I don't want that I want the windows 7 on my old harddrive. What I want to do I install my old harddrive into the new comp and use the 2tb one as extra space. I've tried getting it to work but it keeps trying to install 8 over my windows 7 can anybody help me?