No, VM's are not stand alone systems. They are useful for many things, such as running older programs/hardware that won't run on Windows 7. If you want to keep XP Pro (like I did), you can create a dual boot setup. It's not hard at all. The older OS is to be installed first, followed by Windows 7. I actually have a tri-boot setup on my laptop. But I don't use my laptop as much as I once did. I bought a desktop last November with Windows 7 preinstalled. I actually wanted one sooner, but didn't want to mess with the free upgrade that was being offered with Vista, so I waited. It has a much larger screen and hard drive. And I dual boot with that one, too. Windows 7 has 212GB, Linux Mint 8 has 80GB, and my Windows recovery partition is 12GB. I also run several VM's among them all, I really don't need them at all, but like to use them, and there's always someone here on the forum that wants to know if a certain program will run in one, and I'll try it out. Basically, just killing time and trying to be helpful at the same time.