User account - Renaming Issue.

> I wish to rename my user on Vista Business.
>
>
> My current user is called "Sparow", missing an extra "r".
>
> I followed the path:
> - Control Panel\User Accounts\User Accounts
>
> And used the "Change your account name" option to change the name of
> the account to "Sparrow" (Including an extra "r").
>
> Now change this shows on my login screen and when clicking on the
> windows button on the start menu.
>
> But, when accessing the directory
> - C:\Users
>
> The user is displayed as "Sparow" (That's the original Sparrow without
> two "r"'s)
> - C:\Users\Sparow
>
> Is it because this was the original account name and it cannot be
> changed?
> What options do I have?
>
> Are they: To somehow edit the name of this account, Create a new user
> with the correct spelling of my name and copy the files across, or any
> other soloution.
>
> I know it sounds like a trivial query - but it means something to me.
>
> Thank you for your time, it's much appreciated and any help would be
> great!
> -Sparrow-