Lost Microsoft Account

There is a lost account solution you can run through.

Lost account solution

if you cannot access your microsoft account and have 2fa active then they are right all is lost, and as the microsoft account is the account that minecraft migrated too you have now lost minecraft if you cannot access the microsoft account.

Hi there,

for any lost password/account issues please see the following support page, it will have all steps available to try and recover your account:

https://support.xbox.com/my-account/microsoft-account/lost-password-solution

The page will have steps for a Lost password but also a Lost account.

I hope you will be able to recover your account.

Let us know the results

Hello, Omega here.

So you can recover your account https://account.live.com/ACSR

Also, I recommend to you create a passkey to avoid such thing in the future https://support.xbox.com/my-account/security/create-xbox-one-passkey

I hope this helps you.

Have you tried signing onto
https://www.xbox.com/ with your child's account yet? Or is that one not working either?