please help me?

hey guys
i am going to downgrade from windows 7 to windows xp as i think my computer is honestly not fast enough to run it..here is what im trying to do..i have world of warcraft installed “and i dont have the installation disks for the game so i had to download everything” nearly 20gb worth and because im going to reinstall windows xp i want to keep world of warcraft “the game”so i dont have to download it all over again
is there any way i can do this..i have a few blank DVDRW’s (3 of them) but the file size is almost 20gb’s
please help
Answer #1
The best way I can think of.
RAR the game directory & Then Burn it off.
That should be OK i guess since the scene releases these days themself are compressed!
(If you can, Backup registry entry of the game)
Answer #2
You can try to Rar the game directory and then copy it back onto your fresh windows XP install.It may or may not work.If you’re lucky you can run the game by just clicking on the .exe file in the game directory.But some games require the initial install/setup process.
Answer #3
Are you formatting all drives or only windows drive i.e. C.