Change your Gamertag
1. Scroll to social and press the A button.
2. Scroll Right on the controller.
3. Scroll to Change Gamertag and press the A button.
4.
Scroll to Enter New Gamertag and press the A button.
5.
Enter your new gamertag name and press the Start button.
6.
If you would like to use this gamertag, scroll to Yes, use this gamertag and press the A button.
7.
Your gamertag has now been changed, press the A button to complete the setup.