Recently we needed to move a server from one location to another. In preperation we needed to demote it out of being a DC. I have several other DC/GCs in the enviroment so I wasn't too worried if a failure occured.
However, it wouldnt do so gracefully. It kept complaining that it couldnt transmit it's comple data to the other DCs. This was on varying DCs and wasnt spevific to one. Finally, I used a DCPROMO /forceremoval to get it out.
It unjoin the domain, and removed ADDS role, and deleted it from AD on the other servers. and re-joined it to the domain.
Now when it boots exchange is not working., and I get STARTING on many of the services Thank you for all your help in advance!!!