Can you link an Xbox account to a new email?
On the console:
Press the Xbox button to open the guide and select Profile & system > Add or switch > Add new. Select Get a new email on the Sign in screen. Follow the on-screen instructions to complete the setup.
Can I transfer my Xbox one account to another email?
Select Add Email, enter the information of your new email address, and press Add Alias to confirm your change. Once you add a new email to your account, you will have to verify it. To do so, head to your inbox and open the verification link that was sent to you.
How do I merge my Xbox account to another account?
You can't combine or merge Microsoft accounts, but if you have multiple accounts, you can share your Xbox subscription and content on your Xbox One or newer console. To do this, make sure that all of your accounts are on the same Xbox console, and then select that console as your home Xbox.
Can you transfer an Xbox account to a different Microsoft account?
Nothing can be transferred between accounts. He would need to continue using yours if he wants to keep his information or start over on the new account.
How do I merge Microsoft accounts?
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Can you merge Microsoft email accounts?
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