In anticipation to the final version of Windows 8 being available to the masses, I would like to know what are the possibilities of installing Windows 8 64bit when Windows 7 32bit is already installed. Would Windows 7 32bit and all 32bit drivers have to be reinstalled with 64bit versions? Would all settings and saved data be retained? Would it mean a complete reinstallation of all existing/installed applications or partitioning the hard drive and start from new again? Or would installing another hard drive be more appropriate?