Schack

Hi, Whenever my son runs out of screen time limit, he uses this workaround: 1 He restarts the pc 2 he logs into his local windows 10 profile/account by entering his pincode. He does not have admin right to his windows account. I have a local admin account on the PC. 3 After a couple of seconds KS directs him to the white screen telling him that he has run of time for today. 4 He the pushes the green "I'm a parent" button followed by any random combination of keys for password. This brings him to his windows 10 desktop where he can play as much as he wants to. Whats wrong here?