Sometimes when you install something that works with Office you need to know what platform (32-bit or 64-bit) that you’re running. Here’s how to see the platform (and version) you’re using. For more version information, please see What version of Office am I using?
In Office 2013
- Open an Office 2013 program.
- Click File > Account.
- Under Office Updates, you can see the version, but to see both the version and platform, click About program name (like About Word).
Microsoft Word 2013 (15.0.0000.0000) MSO (15.0.0000.0000) 32-bit
In Office 2010
- Open an Office 2010 program.
- Click File > Help.
- Under About Microsoft program, (like About Microsoft Word) the version is listed with the platform, similar to this:
Version: 14.0.0000.0000 (32-bit)
32-bit (x86) and 64-bit (x64) refers to a computer's processor and the set of instructions that can be executed by the processor. This is a shorthand way to refer to the computer's components, also known as the "platform" or "architecture," that directly affects the computer's memory processing capability. For more information on x86 (32-bit) processors and a list of common consumer-targeted processors, see x86 processors.
x64 (64-bit) processors have been used in workstations and servers since the early 1990s. In 2003, they began being used in personal computers. For more information on x64 processors, see x86-64 processors.