my brother gave me his comp and i want to reformat it because it has too much junk on it. it's an xp pro machine... i have the product key but i do not have an xp pro cd. is there anyway i can do this?
...you will need to get a Windows XP disk from somewhere or else you will have a blank drive with no OS!
If its a pre-made system, like something from HP or Dell, odds are the hd is partitioned and you'll be able to format it back to "factory settings." If not, you'll need a copy of an OS, which aren't too expensive if you get an OEM copy off Newegg.