File names on my PC?

Hi i recently upgraded to Vista and realised that all my file directories has my user name connected to it.



For example, it would be like

C:/Users/(MY USER NAME)/Music/blah blah blah



How do i change the user name?



I figured it has to be when i put in my name during the activation process during windows.

I have already edited my registry to change the registered organization and user, but to no avail. Has it got to do with the drive?File names on my PC?
try opening ';users'; on the vista control panel......