How to Enable Active Directory LDAP SSL Installing an Enterprise Root Certificate Authority in Windows Server 2008/2012/2016. In order to install and configure an Enterprise Root CA, you must log onto the server with a user account that belongs to the Domain Admins group. 1. To Set Up an Enterprise Root CA in Windows Server 2008/2012/2016 1) Click Start, point to Administrative Tools, and then click Server Manager. 2) In the Roles Summary section, click Add roles.