First, make sure you have a 'back door' account with Administrator
privileges, in case something goes wrong.
To rename the Administrator account:
Right-click My Computer and select Manage
In the left pane, double-click on Local Users and Groups
Then in the left pane, highlight Users
In the right pane, right-click on Administrator, and select Rename.
The reader should exercise normal caution and backup the Registry and
data files regularly, and especially before making any changes to their
PC, as well as performing regular virus and spyware scans. I am not
liable for problems or mishaps that occur from the reader using advice
posted here. No warranty, express or implied, is given with the posting
of this message.