My parents' computer is getting up there in age, and is now just too slow for them to work on. I have, in storage, my old Dell Optiplex computer, which is up and ready for them to use. It has no hard drive, but they will supply their 10gb hard drive for the computer. The only thing, is that they do not want to format the hard drive when I install it into the new (old) computer. Is it possible to do this?