My laptop runs XP. I've used computers with Vista, and I like how it works (most of the time). Would it be a good or bad idea to replace XP with Vista? If so/not, why/why not? And if so, how would I go about getting vista for free? My moms laptop came with vista and I know you have to make your own backup disks. So can I just make one from her comp. and use it on mine?