I just recently finished downloading the Windows 7 Professional from MSDN. After that I run the setup.exe and an error came out saying "The version of this file is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher." My current OS is Windows 7 Home Premium x86 (32-Bit). I would much appreciate anyone's help. =)
If u want to install it over ur existing Home Premium x86, then u have to do a fresh install, i.e format & clean install by booting from the installation media