A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Hi Riley Colt
Thanks for using the Q&A platform.
Your @xboxlivefamily.com account is tied to a legacy child or family account structure that Microsoft used for Xbox Live accounts around 2013. These accounts were provisioned under a pseudo-organizational domain, and Microsoft treats them as managed accounts, even though they were set up for home use.
You can try adding a new alias but keeping your primary one attached. Then, try and sign in with the new alias and see if it allows you to sign in. If it does, then make the new alias primary and try again to see if it continues allowing you to sign in.
Find additional information: https://support.microsoft.com/en-us/office/add-or-remove-an-email-alias-in-outlook-com-459b1989-356d-40fa-a689-8f285b13f1f2
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Regards,
Obinna.