Okay, I know that I will need to reinstall windows with a new disk (already acquired). Since I am still waiting on parts to come in I realized I do not know how to reuse a harddrive for a new build. My question is: How to I use the Hard Drive I am currently using on my new build? Do I just plug it in like it was new and boot from dvd? If so, does this automatically overwrite the hdd? I have already backed up files I wish to keep.