Xbox account. Gamer tag error.

Yes they were live accounts that's why they had gamer tags. A few years ago you can set up a gamer tag on the Xbox without the link to a Microsoft account so how do you recover these old gamer tags without a Microsoft account?

I am not sure how it happened. I already had a Microsoft account. When I got my xbox I created an account and got a gamer tag while setting up my xbox. I signed up for xbox live from my xbox using my existing gamer tag and Microsoft account. I then went
to xbox live and signed in using my Miicrosoft account, and for some reason when I did this a new gamer tag was created and associate to my Microsoft account. So, now when I log into xbox live I see one gamer tag. But on my xbox I have a different gamer
tag.

I have a account..all I did was change my gamer tag and now I get this error

The xbox feature is part of your Microsoft account. Not all accounts have a gamer tag, but all xbox accounts are part of the Microsoft account. The gamer tag which is not a required feature of the Microsoft account is so that gamers can represent themselves
in a public manner to other gamers without revealing their actual account (which is the account email).

The gamer tag is not part of Microsoft security in any form, it may help you recover a lost account but just having a gamer tag will not give you access to or is part of the security for a Microsoft account. I did Xbox support for three years, I helped
recover many accounts while customer support was able to do that. I have never heard of a secondary gamer tag before. The only way to recover the account now is through the compromised account link listed above.

The account of my xbox dissapear and my gamer tag too:I open my xbox and it was like I just bought it. No account no gamer tag and microsoft account don t exist anymore too