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Upgrading WSUS from 2.0 to 3.0

Posted on 2007-11-29
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Last Modified: 2013-12-04
I am considering upgrading WSUS from 2.0 to 3.0.  Can I just run the installer over the existing setup?  Or is there a special process I need to go through to keep all of my existing settings.
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Question by:nsx106052
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simsjrg earned 125 total points
ID: 20373901
"Upgrade seamlessly from WSUS 2.0 to WSUS 3.0
WSUS 3.0 can be installed on a server that already has WSUS 2.0 installed. The installation process will perform an in-place upgrade that preserves all the previous settings and approvals. The process of upgrading a server hierarchy should start from the central server and continue down the hierarchy. A WSUS 2.0 server can synchronize from a WSUS 3.0 server, but a WSUS 3.0 server cannot synchronize from a WSUS 2.0 server. Upgrading from WSUS 2.0 to WSUS 3.0 is a one-way process; going back to WSUS 2.0 requires that you first remove WSUS 3.0, then reinstall WSUS 2.0."

Source: http://technet2.microsoft.com/windowsserver/en/library/f3809191-6e2f-4c85-b019-8c16afa547421033.mspx?mfr=true
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