When I got my Xbox One, I forgot what email and password I used for my old gamertag. I set up a new one on the One and I am wondering is there anyway to transfer my profile to the new gamertag? If I can’t its no big deeal I’ll just go and redo what I have done on FM4.
Only way to have all your stuff with a different name is to change the Gamertag on the existing account. You could always bring your 360’s gamertag to the Xbox One if later you do remember your email and password. I would suggest trying to figure out what they were so you could change them to something you will remember
ok so you need the email addy to your old gamertag there is a way to see it which email is used on that account
boot up your 360 & go to that profile then go to your avatar and press A then go right on the thumbstick or d pad & on the right panel is the email addy associated with that gamertag (it will say Microsoft account above it)
hope this helps