(11-10-2014, 04:33 AM)KHg8m3r Wrote: You need to install a x64 version of Windows 7. If you have a legitimate Windows 7 key, you can download the x64 version of Windows 7 from Microsoft or one of their affiliate site, burn it to a disc or set up a special flash drive, and then install Windows 7 x64 with your current license key.
Or if you don't have your product key, you could install a free 64 bit OS, like Linux.