[Douchetallica]

Don't know why family thinks I know how to fix comps just because I'm a game design major, but eh... I need help on helping my uncle.

He says he needs to reformat his computer, but he doesn't have the Windows XP disc, it came installed when he bought the computer.
He wants to back up his program files onto CDs to later put back on.

How do I make these CDs given he doesn't have CD burning software? I believe MS comes with a burning software by just placing files on the disc drive.

Also... how would I reformat or roll back his computer to when he first had it without him having the disc, is that possible?
Or is there a way to derive his XP CD key from registry and just use my windows software CD?

After reformatting/rolling back, do I just copy the stuff from the CDs to the Program Files directory and expect them to work?
He doesn't have a lot of software, if any, installed.

Thanks guys.