A tip for those who intend to dual boot between Windows 7 and Windows 2008 R2...
If you haven't already install Windows 7, install Windows 2008 R2 first, then install Windows 7. I'm not very sure all the technicalities, as I can't find boot.ini which I know exist in Windows XP, which would let the PC know what OS is available to boot to. All i can say is Windows 2008 probably changes the partition it is on to the active boot partition, hence doesn't maintain boot information that shows the existence of a Windows 7 boot partition. Hence if you install Windows 2008 R2 later, you will lose the ability to boot to Windows 7, unless you pop in the dvd to recover the partition. Doing that will allow you to recover the ability to dual boot, but you will not recover the nice boot screen that Windows 7 gives, but the boring Windows 2008 R2 boot screen (at least for my case, as I have itchy hands and change the active partition)
So the best way moving forward is to install Windows 2008 R2 first, then install Windows 7, as Windows 7 is smarter (at least the PDC build still allows me to boot back to Windows 2008, so I guess the current build would be the same).
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