Windows 7 RC to final version

I have preordered an update version for the 10/22 and am currently running and loving the RC version

As I currently have the RC version on my computer, I am assuming when I flatten my machine again during the RTM load I will not have to install Windows XP and then load Windows 7 RC.

I am assuming the Windows 7 RTM version will have the ability to just key in my XP code number and continue loading

If not having reload XP to use the Update version will be a real pain

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