Windows 10 Join Domain Disabled
Not a solution to the problem but you could try as a work around adding the user account your account to the local add workstation to domain group policy object.
Windows 10 join domain disabled. I ask because a domain when used as something a windows computer join is referring to a windows active directory domain. These can only be created in a windows server os. Fyi microsoft didn t invent domains they existed well before ms.
This tutorial will show you how to enable or disable allowing domain users to sign in to windows 10 using biometrics. So if the original was not pro enterprise it still won t be. If you did an in place upgrade the technical preview does not change the original edition of windows that was on the machine.
By default users with a domain account can sign in to windows 10 and elevate uac permissions using biometrics unless disabled via policy. Domain controller must be running windows server 2003 or later. The screenshot from your original question does not indicate that you are running pro or enterprise so i am guessing with some confidence that the original os on the tablet was not domain join capable.
Join a windows 10 pc or device to a domain on the windows 10 pc go tosettings system about then click join a domain. This tutorial will show you how to join a windows 10. You should have the correct domain.
The disabled join domain options is odd. To find it start group policy in the run box by entering. Enter the domain name and click next.