Email Address Change

You sure can!:
support.xbox.com/.../manage-live-id

You can switch email addresses between the accounts only if they are not Hotmail, Outlook or Live emails. You can NOT switch gamertags between Microsoft accounts in any way.

See here to change emails around: NOTE that you will have to change the email of the first account to something else in order to free it up for use to change to the other account:

http://support.xbox.com/en-US/my-account/microsoft-account/change-email-sign-in-for-microsoft-account

Thank you guy I have tried this. Now im getting a message saying can not change account. Visit xbox.com/accountswap. I've just created the new email to sign it to. Why is this happening.

Sri, the last sentence is only relevant of you transfer your gamertag to an other live account, not if you just change the primary email alias of your existing account. This is because payment options are bounded to the live account and not the gamertag.

Hello mate so this a really easy fix. So all you need to do is go onto your Xbox 360 and go to the Dashboard than all the way to the right under the settings tab on the dashboard there it says Account click on that. There you will see Account Security click
that. Than click Change Microsoft Account.

So (Dashboard-Account-Account Security-Change Microsoft Account. And then enter the new email address you wish to use for your GamerTag.

I hope this help's you Fix your Problem.

Xbox GamerTag:

Twitter: @