A long time ago, I created a Windows Domain in my home office as a learning aid and business tool. I used Windows Server 2003.
Over time, the network has spread to the rest of the house and has become more trouble than it is worth! The server is old, the Windows version is old, I don't have enough licences to connect everything, plus other reasons such as if the server has a problem it affects everyone / thing else on the network (because it is running DNS).
I would like to "undo" the domain and convert to a simple (?) workgroup. I have a router that can provide DHCP, although I would probably want to assign IP addresses to each device so I can keep certain things grouped and then control their Internet access ;-)
I would still like to keep the server, but just as another computer on the network.
The server is currently running Exchange, which will need to stay at first, but it will either be replaced with an IMAP solution or hosted Exchange.
What do I need to do in order to achieve the above?