I had 2 domain controllers this morning & now I have only one. My Windows 2000 server (PDC) decided not to reboot after Windows updates. It comes up with BSOD and the message is INACCESSIBLE_BOOT_DEVICE. it will not boot up in normal or safe mode and not even to command prompt. Well the server is about 8 years old. I also have a member server (Windows 2003 server). Can I make this server my PDC without affecting the AD? If I can do this then I don't care much about my old server. I got all the data I need and copied it onto the Windows 2003 server. I am ok in that regard. Can someone please guide me through to make this 2003 server my PDC & transfer all the roles to it?