My son likes to use the net user command during bootup. I locked his butt down with AD GPO (WIN2K8) but haven't figured out how to prevent or deny the net user command. He is able to change password...

Good Day,

I disabled the Admin account but I have a user that just reboots the system and hits F8 and boot to the prompt thus running the Net User command. How do I prevent this? I have the WIN10...