Microsoft Certificate Services - Creating a CA (PKI) Hierarchy (Stand Alone Root / Ent Sub) Part 1 of 2 - MCT - William Grismore will demonstrate in detail how to install a Microsoft Certificate Server Hierarchy. In Part 1 of 2 he will demonstrate how to install a Stand Alone Root CA. Then be sure to check out Part 2 where he pulls it all together buy demonstrating how to then install the Enterprise Subordinate and make is a child CA of the Root.