Things You'll Need
Instructions
Turn off your Xbox 360 Elite console.
Connect an Ethernet cable to the networking port on the rear of the Xbox and plug the other end into your broadband router or modem. Turn back on your Xbox console.
Open the "My Xbox" menu and press "A" to select your avatar. Highlight the "Join Xbox Live" entry and press "A." This will open a setup wizard for your Xbox Live account. Follow the directions displayed by the setup wizard to enter your email address, agree to the licensing terms and enter payment information for the account.