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How to Properly Decommission Windows 2003 R2 Priamary Domain Controller which is alos a DHCP.

We are upgrading to Windows 2008 R2 I have setup the Windows 2008 R2 as a secondry Domain controller on a brand new machine. I need to make this secondry 2008 R2 as Primary domain controller need to know how i can give this new machine the Role of Mastrer Domain controller.
Need to know how can i gracefully decommossion the Windows 2003 Primary domain controller. Also need to know how i can transfer the DHCP role on the new server.
Once all is done i will need to remame the new server with the same name of the retired 2003 server.

1 Solution
* Ensure this new server is not a CA server, if it is you cannot change it's name.

1.You need to transfer the FSMO roles to the new server. There are 5 roles, this can be done a variety of ways. This will effectively make it the Promary Domain Controller. Please read this link and choose the way you feel most comfortable:   http://www.petri.co.il/transferring_fsmo_roles.htm

2. Transfer the DHCP server. http://support.microsoft.com/kb/325473  Read the section for trans ferring on a windows 2003 server NOT ewindows 200

3. Make sure the new DC is also a DNS server and a Global catalog server! Global Catalog server settings: http://support.microsoft.com/kb/313994

4. run dcpromo on the old server and demote it to a member server.

5. if you have no other services on the old DC that your network needs then unjoin it from the domain as you would any regular server/workstation.

6. rename the new server to the old servers name ( I would advise against this, I think it is a better practice to have it using a brand new name).

That should be it.
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