music folder help

i have vistax64 and my music folder has no path. i right click it and go to
properties, but i have no option to change the path. All other tabs work
from the start menu, like pictures documents and user except the music one i
click it and nothing happens. My major concern about this is that i cant use
itunes without a default music folder as it says it cannon open or create
itunes which is located in the my music folder. i have a music folder, but
for some reason it isnt the default folder and i cant find or make it the
default folder. Anyone have any idea on how to solve this problem would be
greatly appreciated.