Hi. I upgraded to win10 and tried to redefine my children accounts. I had no problem with one of them who had hotmail.com mail address. But I can't add the other one having outlook.com address. The invitation was sent to the child, he accepted it but his account is still hanging with the message that the invitation has been sent and when he accepts it, he will be added to family. Well he has accepted it already. What should I do?