How to remove active directory certificate services sbs 2008 std ?

Hello and thank you for taking the time out to read my question.


New server. SBS 2011 STD.
Before bringing the server to work. I connected it at home, created a new domain, named the server and updated the OS.

I brought the server to work today to install and setup.
First I had to change the IP to get the server on the network.
After that I ran DCPROMO.EXE to promote to DC and setup DNS.

I got a message

"Before you can install or remove Active Directory Domain Services, you must remove Active Directory Certificate services."

I open up Certificate Authority certsrv.exe and revoked all issued certificates. I see that they went to the revoked certificates folder, however this did not do the trick. I'm still being asked to  remove Active Directory Certificate services.

Please help, how do i  remove Active Directory Certificate services.

Many thanks in advance.