Change Xbox 360 Live Gamertag

If you want to change the Xbox 360 Live gamertag (silver or gold) , just follow the following steps :

1- Go to Xbox Live section in the dashboard.
2- Highlight your gamertag and press the A button.
3- Then select Edit Profile.
4- Select Gamertag.
5- On the Edit Gamertag screen, follow the steps on the screen.
6- Confirm the purchase of 800 points.
Then you'll find your gamertag changed to the new one.

If it is offline gamertag you will change it For Free.
Just sign in to your profile and select Edit Profile, then select Profile Name.
Then edit the current name to the new one.