Windows Server 2003 Upgrade to Server 2008 R2

Hey Everyone,

I have a quick question. Here at my job we have Windows Server 2003 as our main AD server. We just got in our new Windows 2008 R2 Server. What is the easist way of going about doing the upgrade? Ive done brand new setups of AD but never an upgrade. Is it better to just make a new domain on the new server and slowly convert everyone over to the new domain? The old 2003 AD server is a mess. I dont want to bring anything over from that. Please let me know your thoughts ? Thanks
Who is Participating?
Neil RussellTechnical Development LeadCommented:
"The old 2003 AD server is a mess. I dont want to bring anything over from that. "

You have answered your own question.  Setup the new server, create a nic new clean domain, create the users and move machines to the new domain.
Is exchange involved? Gets a lot move complicated if it is.
Neil RussellTechnical Development LeadCommented:

If you read the post, the questioner says they DO NOT want to "Bring anything over" from the old domain. Doing an upgrade as in the link you posted would infact bring EVERYTHING over.
Lee W, MVPTechnology and Business Process AdvisorCommented:
I disagree - just because the server's "a mess" (which we don't even know what that means - it's not exactly a technical term..) doesn't mean you should rebuild from scratch.  Speaking as someone who has done this for a small network of 15 people, I'll tell you, just because the server's a "mess" doesn't mean you should abandon your Active Directory.  The amount of time to migrate people between two and the the amount of work to migrate profiles and rejoin machines to the domain and reset security, etc, etc, it's not trivial unless you have 3 users.  

The server may be a mess, but AD is USUALLY fine.  And before any upgrade, you want to run DCDIAG on the old DCs to ensure they are healthy from an AD perspective... and if they are not, resolve any problems that may not be expected.
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