User name and password
The password requested at launch is not a serial number!
You must use an administrator user name and its password (see System Preferences > Users & Groups).
Note: With Mac OS X 10.7 and OS X 10.8, the applications work only if you set a password. Even if you are the only one using your computer, not setting a password is a security risk and can be very dangerous. Remember that you are connecting to the Internet!