I am going to demote and decommission and old 2008 R2 server after transferred fsmo role and DHCP, but I found in the server role there is one called "Active Directory Certificate Services" installed on the old server, I believe it is installed by their previous IT but not sure what should i do with it.
What is it for? am i able to decommission the server without uninstalling it? if I have to transfer it, what is the procedure please? the new server is 2016 with all fsmo role on it.