Install Server 2016 Domain Controller

From Server Manager – click Manage – Add Roles and Features. 
Click Next and Next on Select installation type for Role-based installation. 
Select the server that you want to install your first domain controller – click next. 
Place a check in Active Directory Domain Services
Click Add Features on the box that pops up for ADDS.

Click Next – Next on Features page.
Click Next on AD DS.   Review the settings on the Confirmation Page and place a check mark in the Restart automatically box and then click Install.  

Wait for installation to complete and then click close. 
Return to Server Manager and click the yellow triangle with the exclamation mark. 

In Post-deployment Configuration – click Promote this server to a domain controller. 

Make your choice in deployment operation (for this post we are going to Add a new forest). 
Type in your desired root domain (example domain.com) and click Next. 

Domain Controller Options – choose your forest and domain functional level.  In this example I am going with Windows Server 2016 because I don’t need to add any older domain controllers. 
Specify domain controller capabilities – Select DNS and GC is already added. 
Choose and enter a DSRM password and click Next. 

Additional Options – Leave default or change the NetBIOS name if necessary and click next.  

Verify and click Next on the Paths page. 
Review your options and click next. 
Prerequisites Check – review the results and if acceptable click Install.
After the DC reboots, log back in and begin setting up your Active Directory environment.