How to sign into Xbox live on an existing account on the Xbox

Hi there - Can you try the "Recover Gamertag" method? I think you might be trying to sign up instead of recovering your account that exists.

support.xbox.com/.../gamer-profile

Hi,

I gave in and created an xbox live account with my work email, after doing this I was able to sign out, sign back in and then opt to switch accounts to my already existing live account. I feel like there should have been an option to sign in with an existing
account from word go, but it's sorted now.

Thank you for your help!

Your Xbox Live account is part of your Microsoft account and is there forever. You can sign out (remove your account) and it still exists and is ready to be signed into or downloaded as often as you need.

Hi! Can you kindly add a little more information to the question?

Are you trying to add an existing Xbox Live account to your Xbox 360?

If you are attempting to add an existing Xbox Live account to an Xbox 360, Create or go to the profile you would like the existing Xbox Live account to be accessible on, go to Xbox Live and download the existing account to the profile.

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.