I have just inherited a client who has a SBS 2011 server. The server has exchange 2010 SP1. I intended to install SP3 but ran into issues which showed me that from running dcdiag there was sync issues with a now non existent DC.
Obviously I cant run dcpromo as the server is not here.
I can see the server listed under the OU group Servers, but surprisingly not Domain controllers?
i have run netdom query fsmo and can see all roles are on the on the remaining DC not this old DC
I have also been into active directory sites and services and can see the old server listed under servers.
So in short how do i remove this so dcdiag will pass all tests