No E-Mail to Xbox?

Was it from an e-mail or after navigating the site like Onyx62ish said? If it's in e-mail form, make sure it's an official xbox e-mail.

confirmation on the microsoft e-mail or my xbox live e-mail??

I wanted to completely change the e-mail tied to my GFWL account to another one and forget the current one/delete it but I guess that's not possible. Your system is a complete mess, you need to have BACKUP e-mail to have a e-mail, when you create a outlook/hotmail
account you need to have another e-mail (WHAT'S THE POINT OF CREATING A HOTMAIL ONE THEN?) so the logic goes like that:

Want to create e-mail A -> to create e-mail A you need to have e-mail B -> to create e-mail B you need to have e-mail C -> to create e-mail C you need to have e-mail D -> etc

Also you're able to do this:

E-mail Y backup is: E-mail X

E-mail X backup is: E-mail Y

What? what happens then? a loop of confirmations?

I tried to change the GFWL main alias to a different one but it kept giving me this "e-mail already exist" message or something. At the end of the day the system is so confuse that you get lost in the middle of so many different e-mails, aliases and microsoft/xbox
accounts, this system is complete garbage.

I believe you'll have to use a different e-mail address.

If your son is using your e-mail for his Xbox Live account, that e-mail is linked to his gamer tag.

age is not it i am 43, and my e-mail is valid xbox e-mails me at it all the time