Advice on Exchange 2010 uninstall/reinstall

I am trying to repair a failed Exchange 2010 upgrade from Exchange 2003. I was brought into the project after the installation had failed, so I don't exactly know what went wrong or where the issue is. What I do know is that after the install failed (and broke email for our entire organization) they went back to 2003. We now have an Exchange 2003 server handling our email, and an Exchange 2010 server on the network, but not doing anything. As such, I want to scrap the "failed" install and start from scratch.

Before I do this however, I want to make sure that uninstalling Exchange 2010 will not affect our email in any way (it is imperative that email remains functional while I clean this up). In Exchange 2010, I checked and there are no send connectors, or anything like that. If I uninstall 2010, should I remove the AD changes or leave them in since, from what I understand, they did not cause the issue?

Exchange server info:

Windows Server 2008 R2 64Bit SP 1

4GB RAM

Intel Xeon 3.06Ghz (4 core)

Exchange Server 2010

 

If anyone has uninstalled 2010 and run into any problems, or has done so with no problems, please let me know.

Thanks!

Maddoghoek77Asked:
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steinmtoConnect With a Mentor Commented:
If all your mailboxes and roles are on the 2003 server I do not see an issue. I have uninstalled Exchange Servers during the work day and have not had an issue doing so.  Inbound mail is going to the 2003 server correct.  You do not have any mailboxes or public folders on the 2010 server correct?  Your send connector or connectors should be on the 2003 server.  I know when I uninstall exchange it will not let me uninstall it unless everything is moved off it including mailboxes and rus and so on.
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steinmtoConnect With a Mentor Commented:
I have not had an issue uninstalling Exchange 2010.  
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Maddoghoek77Author Commented:
So do you think I should be able to uninstall and reinstall without affecting our current 2003 environment? I just want to make sure that our email (2003) is not "broken" while I do this.

Thanks!
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Maddoghoek77Author Commented:
Excellent, I will check those things (I am pretty sure they are all as they should be, but want to be sure).

Thanks!
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