How do I unlink or change the Gamertag linked to my Bungie.net profile?
You have to unlink your current gamertag and input a new one.
Assuming you still have your original gamertag linked to your profile (if not, you'll have to recover it), go to 'My Xbox' and select your profile. Select 'Manage Account', 'Windows Live ID', and then 'Change Windows Live ID.' Confirm you want to change your WLID, then enter your current information and press 'Continue'. The next screen will ask for a new email address and password, so put in a NEW email and password (if you don't have one please visit http://account.live.com/ and click 'Sign-Up.')
do u have to do this on b.net or xbox.com?
[Edited on 02.26.2012 7:12 PM PST]