Specify the role performed by this network server.
A network server is a stand-alone or member server that provides services such as printing or e-mail to client computers but does not control access. To change the domain role to or from server, you can promote or demote the server. You do not need to reinstall Windows.
If the network server is a domain controller, it manages user access between servers and clients. To complete the installation of a domain controller, you must promote the server using the Windows DCPROMO command once the INSWNTSVR command has completed.
Choose which role the network server will perform: