Is my Windows 7 x86 license key valid for a x64 installation of Windows?
I was thinking of purchasing an Acer laptop with 4GB of RAM that has Windows 7 Professional preinstalled with downgrade rights to Windows XP Professional (which I will not be using). As far as I can reason, because of the downgrade rights, it includes the 32-bit version (x86) of Windows 7. I would like to use the 64-bit (x64) version of Windows 7 in order to access all 4GB of RAM (instead of the ~3.5GB cap 32-bit has). Is it possible to somehow switch my OEM copy of Windows 7 from 32- to 64-bit and if so, can someone help point me in the right direction to accomplishing that. Thanks!