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 Need more help? Search No results Join the discussion Ask the community Get support Contact Us 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.