I have saw this at a video on youtube, you will like the music, seriously :roll:
Ok first go to My Computer from "Start" or from desktop
Go to the hard drive of your WINDOWS XP
Go to WINDOWS folder
Find system32 and open it
Search the folder "oobe" (no quotes!) and then open it, when you'r there, open the folder "images" (no quotes!)
Find the music title.wma and open it and... ping!
Hidden Music!
You might heared this music somehow on Service Pack 2 installation (dunno if its true, i have saw that on a comment on that video explaining all things i have explained (LOL))
Hope you enjoy the music.
ATTENTION:
DO NOT DELETE THE MUSIC!!! But you can copy it, do NOT cut it.