I've never set up a backup partition before, I've read that you set aside 3-4GB for the partition, copy the entire Win 7 DVD to the partition, then set the partition to boot as necessary. I'm not sure if I want to do that, so let's say I create a restore point (or maybe create a backup image, maybe they're the same thing, I'm not familiar with the terminology) and save that to an external disk and then one day my hd fails me: can I use that restore point/image on a different hard disk with a new install of Win7 Pro or would I have to have the original hard drive with the original install in order to restore to that point?