Promoting Xbox Live account in an Adult account.?

[Jonathan]

I had the same problem as you, as I couldn't see the Promote Child account option either.

So here's what I did.

I logged into my email account associated with my Xbox Live account. I went to my account settings on my email and changed my date of birth to 1991 so instead of being 16, Im 18 now.

After that, I went onto the Xbox and went to the Dashboard, chose My Xbox, then clicked on my gamer profile, chose Manage Account, and promote Child Account.
But, When I tried to do that, I would get an error a second into updating it.

So then I went into System Settings, Memory, then Format memory so everything off the Console was gone.

After that I went and tried to create a New gamer Profile. After that I pressed Join XBOX Live and used the email I used before.

Before logging on to XBOX Live It updated itself, then restarted the Console. Then I went back and finished recovering my Gamer tag.

After that, the Promote Child Account option worked perfectly, Now I'm enjoying Twitter, Facebook, and Last.fm.

Good Luck!