I'm wondering myself if there's a way to manually remove all the data left in active directory about an old DHCP server that was not safely removed.
I mean, when I use "dhcpmgmt.msc" when I go to "manage authorized server", I have my 2 DHCP I newsly setup and on old one that even the computer I can't found...
If you have any clue,
My setup :
_ 2 * windows 2003 standard SP2 (AD, DNS, DHCP)