Posted 20 February 2007 - 05:43 PM
You can't down-grade a computer but you can wipe the harddrive clean and start fresh. Just put the Windows XP CD in the tray and boot from it. It'll load all its drivers and what-not and than you'll see all the options of either wiping it clean, partitioning it, and all that fun stuff. For all intensive purposes, leave it only one partition. After the harddrive is wiped, you may proceed to format and install Windows XP! For the most part after that, it's automatic, but you will need to choose a network and name the computer and time zone and all that. I suggest though, when you get to this part, make a password.
There, installing XP in a nutshell. If you want to keep any data that's already on there, you need to burn it to a CD or put it on an external HD, if you have one. Once you erase the harddrive and install Windows, there's no easy way back.