Things You'll Need
Instructions
Turn on your Xbox 360. Ensure that either the Xbox 360 is directly connected to a router or is equipped with a wireless adapter.
Sign into an existing profile or create a new one. Select "Join Xbox Live" from the main menu.
Fill out the required information. Your name, address, email address and other personal information will be collected.
Select silver membership. Confirm your membership. Selecting the silver membership is always free, but in selecting the silver you will also receive a one month free trial for the gold membership, which you can use to play multiplayer games on Xbox Live. This method does not work if you've previously subscribed to either Xbox Live memberships on that particular profile.