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25 Oct 2009  

Vista Ultimate 64-bit, Windows 7 Pro 64-bit
Vista Ult x64 SP2 or Win7 Ult x64 RC to Win7 Pro x64

First, I am NOT part of the "install from scratch" crowd. I have a LOT of application software and development tools and it takes me literally DAYS to install, configure and tweak my development machine.

Config - Lenovo ThinkPad W500 w/500GB Seagate Momentus drives internally and in bay caddy, space is not a problem.

What I have - Dual boot Vista Ultimate x64 SP2 OEM on 396GB primary, active system partition with Win7 RC (build 7100) on 70GB boot/page file/crash dump/primary partition with AppData under Win7 pointing to Libraries/My Documents data back on the Vista partition. I have media for the Vista Ultimate.

What I've bought - Win7 Pro Upgrade.

What I want to do - In place upgrade of either Vista or Win7 RC to Win7 Pro x64 and NOT re-install my applications.

Can it be done? I know my first problem is for both OS's I'm downgrading from Ultimate to Pro, but I really don't have the time, desire or inclination to spend 2-3 days heads down re-installing all my software.

Ideally I would like to keep the dual boot (I've had Win7 RC flake out one me once and it was painful) and do the in-place upgrade on the Win7 RC partition. I'm thinking the cversion.ini trick on the Win7 partition may work, but if it has to be the Vista partition so be it.

Any advice appreciated in advance.
My System SpecsSystem Spec