How do I disconnect an xbox account from an email address?

How do I completely remove an email address from a Microsoft account that I accidentally created a long time ago, its not used for anything? I want to use that email address to sign in to my actual Xbox Live account, and then how do I change the email sign
on on the account i want to use it for?

if your email address is a Microsoft email (@hotmail, @live, @outlook) then you wont be able to remove your account from the Xbox account.

removing Microsoft email accounts from Xbox accounts permanently deletes the email account and you will no longer be able to access it

all you can do is add an alias email address then promote that to be the main email address.

My email address was connected to a different account. I switched the emails connected to that account. I then created my new gamertag from the email I disconnected from that account and created my new account. I then went back and closed the extra account
and now I can't log into my new account. Can anyone help?

now i have no idea what to do , ea were oblivious no help given without the connected email address , they wont disconnect the account from my microft account without the email used in ea , and to make matters worse when i log into any ea game it now says a email was sent to an email (partial one with **** so i cant see it) address i have never seen used or heard of (@emlpro.com) ?? just wanna play battlefield lol

you cannot transfer games/DLC or save from one account to another but you can change the account email address. It can be a multi-step process however I do not know that you can make an account a child account once validated as an adult, if that's what
you want to do.

Add an email address verify it works

update primary email address, make sure it works

Remove old email address.

how to change your email address