I just bought myself a new computer (some assembly required, of course). The parts are going to show up next week. Everything will be new except for the hard drives. On my current computer I had Windows 7 (which I had purchased a retail copy of) which I upgraded to Windows 10. When I put the new computer together, I know that at the very least I will have to do a repair, possibly even a full install. I'm curious how that will work. If I have to go with a full install, will I even be able to reupgrade my copy of Windows 7 to 10 again?