During initial setup, ny full and account names were mispelled. If you are already logged, log out Log in using a administrator account. The account you use to log in must be different from the account you want to change. Choose Go, Go to Folder… from the menu of press Shift-Command-G to open th Go to Folder window. Type /Users and click OK Within the /Users folder, you will see a folder with the name of the account you want to renames.