Hi, so recently I got a new 1tb hard drive, my old one is 500gb and now I wana transfer my file to the 1tb one so what do i have to do? I have an external hard drive that I can back up to but I don't know if windows will boot with a back up drive. and I cant fit two hard drive because of my case is too compact. Do I need to install windows on the new hard drive first so I can use it? thanks for the help.