Instructions
Press the power button to boot up your PlayStation 3.
Scroll through the "Users" tab on the Xross Media Bar to locate the "Create New User" option. Hit "X" to initiate the process.
Use your controller to enter a name for your new user account. Names can be up to 16 characters long. Press "Start" to complete the name entry process.
Log in to your account when you want to access your files and game saves. To log in to your dashboard, scroll through the "Users" tab until you locate your name, and press "X."