Child Account not showing as Family

Each child account Has to have an adult account attached to it.

Have you tried signing into your account at account.microsoft.com/family and seeing if it is showing up there as a child account under a family with an adult account attached to it?

There are 2 ways that determines if your account is a child account or not.

1. The DOB on the account when it was originally setup (requires account to be in a family as a child account) until the DOB reaches the age of majority 18 in most regions.

2. If an account was under 18 and has reached the age of majority (18 in most countries) sometimes the system will glitch and not put them in their own family and if their account is still in a family as a child account then the account
will still see them as a child account until they sign in at account.microsoft.com/family and remove themselves from the family,

So in your friends case IF the DOB when his account was originally setup is above the age of majority and he is still showing as a child account then more than likely he is still in a family as a child account. If he is not in a family
and it is still saying that he is a child that means the DOB when his account was originally setup is still under the age of majority.

If your DOB on your account when it was originally setup is still considered under the age of majority and you remove yourself from a family as a child you will not be able to do anything on the account till you are added back to a
family as a child account.

It may be easier to do it on a computer.

Sign into the current parent account at account.microsoft.com/family

It will show anyone in the family under the family member that you want to remove there is a choice for more options when you click on that it will give you a choice to remove from family.

Sign out of that account and sign into the account that you want the child on at account.microsoft.com/family and there would be a choice to add a member where you can add the child to the new account.

Keep in mind while the child is not a member of a family they will not be able to do ANYTHING until added to a family.

Each child account Has to have an adult account attached to it.

Have you tried signing into your account at account.microsoft.com/family and seeing if it is showing up there as a child account under a family with an adult account attached to it?

But i am not a child! And i have no child account, my ms-account is adult,
only on the XBOX360 my account is child, not on the XBO not on MS.

And ich have since yesterday two errors 8C150009 and 801540C.

The reason you have two accounts come up is one is the parent account.

You'll want to check for sure which is the parent and which is the child. Try signing into your gamertag on the console and go to the setting hub (not through the guide menu) and select the family panel. If this account is the parent, it will show the child
account. You can select the child account and remove from family. That'll get rid of the second account.

If you do not see the second account in the family panel, that means your primary account is the child account and the email is actually tied to the parent.