To find users on Server 2016, you can use the Active Directory Users and Computers snap-in. This is a graphical user interface (GUI) that allows administrators to manage objects in their Windows environment. To access it, open the Start menu, click Administrative Tools > Active Directory Users and Computers. From there, you can view all of your users by double-clicking on the ‘Users’ folder under your domain name in the left navigation pane. You can also search for specific users by selecting Advanced Features from the View menu at the top of the window and using either Find or Advanced Search from within this feature set.