Hi, Just want to update the status. I started the process from the simple one (Case 3 from post #12). I cloned the 2k3 DC to a VM and created another 2k8r2 VM and did the following: a) I joined the 2k8 to the domain, B) used "DCPromo" to upgrade the 2k8 server to be a DC. From this step, I stucked. What is next step?? How can I take out the old DC?? How to transfer the AD information to the new DC?? How to move the data and login scripts to the new server?? (I used the DC as file server and DNS too). Thanks. :blushing: