Try Vista without killing your XP

For the easiest way to try Windows without killing your existing XP install, I recommend trying one of two approaches:

• The first way is to simply make a backup of your existing Windows XP install and then install Windows Vista either over the top or as a clean install. If things go wrong or you choose to go back to XP, just apply the backup over the top.
• Another way is to buy a new hard drive and swap out your primary drive for the new one. This way you keep your current install safe.