Administrators group

Administrators group: On a local computer, a group whose members have the highest level of administrative access to the local computer. Examples of administrative tasks that can be performed by members of this group include installing programs; accessing all files on the computer; auditing access control; and creating, modifying, and deleting local user accounts.

In an Active Directory domain, a group whose members have the highest level of administrative access in the domain. Examples of administrative tasks that can be performed by members of this group include setting domain policy; assigning and resetting domain user account passwords; setting up and managing domain controllers; and creating, modifying, and deleting domain user accounts.