More than 90% of Windows 8.1 installations are 64-bit and, as a result, more and more people use 64-bit operating systems and applications. Even popular applications like Google Chrome and 7-Zip are now using the 64-bit architecture to provide better performance. All this is good but, on a 64-bit operating system, you can run both 32-bit and 64-bit applications. How can you tell whether a program is 64-bit or 32-bit? To help you figure this out, we would like to share three ways of doing this, that work both in Windows 7 and Windows 8.1.More than 90% of Windows 8.1 installations are