How to login to old account with email and gamertag

Hi and thanks for reaching Microsoft Xbox gamer's community. My name is Josef.

I'm an Independent Advisor and a Microsoft Xbox user like you.

Hope you're doing great today despite this Ticcerz

The important thing is that you know the email, in this case you may need to proceed with the account recovery form:

https://account.live.com/acsr

**If you enabled two steps verification in your account, sadly you can't recover the account

As you mentioned that you suspect that this gamertag is linked to one of your old email accounts. I will suggest login to your old email account and change the email address of that one with your new email address as described here https://support.microsoft.com/en-au/help/12407/microsoft-account-change-email-phone-number

Or you can delete or change your gamertag by accessing your old email account first.

thank you all for help.

The link to change gamertag says that the gamertag is allready existing.

"

You have to unkink any email from your old gamertag.

Then unlink the actual gamertag with your email account.

And finally , link the old gamertag to your email account."

how ?

thx

The email address is just like a login name. It doesn't have to be active to be able to login to the Microsoft account for your gamertag. If you visit account.microsoft.com and enter the email address and password for the account you will be able to login
and change the sign in information.

You will need to be able to signin to the purchasing account for the old content so you can download it to your console

It is not possible to transfer that content to a new account

So, If I'm understanding your question, you have a gamertag tied your dad's email address that you want to tie to your email address instead, right?

In theory, as long as you have access to both accounts, you should be able to change the associated email addresses(s). You'll need to login to your old Microsoft account (dads) and change the primary email alias to the new email address you want to use.
Before you can do that, you will need to login to your new account (with the email you want to use) and change the primary email alias to some other email account you have. Then, have your dad login to his account and change the primary email alias to the
email you want to use instead. He would be forfeiting his account to you, but that is the only way to keep the old gamertag with your new email address. Keep in mind, if he is the primary account over a family of Microsoft accounts, this would transfer everything
to you... in theory.