Hello, I am unable to uninstall Exchange 2007 because of the following situation : 1. I started with an exchange 2007 RTM on Windows Server 2003 2. Installed and additional Domain Controller on W2K8R2 and upgraded the domain func. level and forest func. level to Windows 2008 ( not a clever move i guess ) 3. Removed the Windows 2003 DC from domain 4. Installed and additional server Exchange 2007 SP3 which is running fine in coexistence with the RTM version 5. Now i am unable to uninstall the RTM server because no Windows Server 2003 SP1 DC was found ( logically because i removed it ) How can i make the RTM version go away, because the setup.com /mode:uninstall is not working for me. Thx ! Rob

Hi What errors do you have ?

Hi, What you can do is to install SP3 on the server first and then uninstall it.Martina Miskovic

Hello, Please post the detailed error message in the setup.log. Thanks, Simon

this is the main problem : [ERROR] Cannot find at least one global catalog server running Windows Server 2003 Service Pack 1 or later in the local Active Directory site. Domain and Forest Func. Level are 2008 ( not R2 ) Maybe the only way out is to install an additional DC with 2003 Sp2 ?

just to be sure : you mean MS Exchange Server 2007 SP3 ?

just to be sure : you mean MS Exchange Server 2007 SP3 ? Yes, Exchange 2007 SP3. Martina Miskovic