How to Upgrade from 32-bit to 64-bit Windows
http://www.lockergnome.com /blade/2012/01/18/how-not-to-upgrade-from-32-bit-windows-7-to-64-bit-windows-7/ – Even a veteran Windows user can live a long and happy life without making a so-called upgrade from Windows 7 32-bit to Windows 7 64-bit, but sometimes…