Windows Server 2016 is a server operating system developed by Microsoft as part of the Windows NT family of operating systems, developed concurrently with Windows 10.
This tutorial will show you how to change the hostname on windows server 2016.
Click the start menu and then click Server Manager.
Click local server and then your computer name.
Enter a computer name and then click OK
Restart your computer and when the server restarts you will see that your hostname will be changed.
A full video tutorial can be found here: