I have a user that is part of the default 'Administrators' group and the default 'Domain Users' group. When the user tries running a program on Windows 8.1 Industry Pro that requires administrator priveledges, he gets asked for an administrator username and password, though he is already an admin. Entering the user's own details here does not work but entering the details of the default Administrator account does.
I've tried adding this user to the 'Domain Admins' group instead of the 'Administrators' group where the problem was solved, but the user could not use the Windows Server Manager Application (he received an 'Access Denied' error) and could not administer AD Users and Computers, both of which are necessary for my setup.
I'd like the user to not have to enter the admin details when running something requiring admin priveledges. Please can somebody tell me how to do this?
Edit: I also thought of trying to delete the user from the 'Domain Users' group, although I am not sure if this would have any negative consequences (e.g. loss of access to computers/files.)
P.S. The reason I posted here instead of on ServerFault is because I am running this on an experimental home network instead of on a business environment.