32-bit and 64-bit Windows: Frequently asked questions Content provided by Microsoft Applies to: Windows 10Windows 8.1Windows 8Windows 7 More Select Product Version All Products Here are answers to some common questions about the 32-bit and 64-bit versions of Windows. Show all How do I upgrade from the 32-bit to the 64-bit version of Windows? How can I tell if my computer is running a 32-bit or a 64-bit version of Windows? Which version of Windows should I install: the 32-bit version or the 64-bit version? How do I tell if my computer can run a 64-bit version of Windows?Find out how to choose between the 64-bit or 32-bit version of Office. Last Updated: Jul 29, 2019 Was this information helpful? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.