Computer... Name?

I did this on W7:

Control Panel -> User Accounts And Family Safety -> User Accounts -> Manage Accounts -> Create New Account

Editing ; Assuming you wanted to create another user account, and not so much as modify privileges.

Split Parents. Dad never touches this computer. I want to rename it without copying over ALL my settings, files, etc. I've done it 3 or 4 times in the past 6 months. Kind of getting old.

On XP, it's my computer, view system information, computer name, change to whatever you want.

But that is Win7. I haven't played with it yet, so it might be probably different.

I think I tried this a while ago: The computer's "name" isn't Barry, but "Box-O-Bugs"*. Changing it doesn't change the folder named Barry under Users.

*I've had issues with my computer not crashing.

But in 7, there's this nice little "change settings" thing which brings a popup "System Properties". In there I got a new window "user profiles", which shows exactly what I want to change. Doesn't give me a rename option. Doesn't let me "copy to". :|