List of Known Microsoft Office Install Locations

This table is a list of locations that Microsoft Office is known to install to, based on Drew Naylor's research installing each version listed. It's organized by Office version, whether the Windows install is 32-bit or 64-bit, whether Office itself is 32-bit or 64-bit, the installation method (Click-to-Run [C2R] or MSI), and the resulting location. Drive C is the drive letter that is assumed for all locations listed below. Microsoft Office and all related products are copyright and trademark Microsoft Corporation in the United States and/or other countries. Microsoft reserves all rights for Microsoft Office. See more details about the locations listed below here and here.

Microsoft did make their own list of install locations, but it's only for non-Office 365 installations. It's at that link under "Startup command names and locations".

If there are other locations not listed below, please create an issue with the Office version, Windows installation type (32-bit or 64-bit), whether Office is 32-bit or 64-bit, the installation method (whether Click-to-Run [C2R] or MSI was used), and the resulting location, along with a screenshot of the directory Office is stored in, but cover up any private information FIRST.

Office Version	Windows Installation Type (32-bit or 64-bit)	Is Office 32-bit or 64-bit?	Office Installation Method (C2R or MSI)	Resulting Location
Office Professional Plus 2010	64-bit	32-bit	MSI	"C:\Program Files (x86)\Microsoft Office\Office14"
Office Professional Plus 2010	32-bit	32-bit	MSI	"C:\Program Files\Microsoft Office\Office14"
Office 2013 via Office 365 Home	64-bit	32-bit	Office 365 (C2R)	"C:\Program Files\Microsoft Office 15\root\office15"
Office Professional Plus 2013	64-bit	32-bit	MSI	"C:\Program Files (x86)\Microsoft Office\Office15"
Office 2016 via Office 365 Home/Office 2016 from retail key card	64-bit	32-bit	Office 365 (C2R)	"C:\Program Files (x86)\Microsoft Office\root\Office16"
Office 2016 via Access Runtime 2016 and Visio Viewer version 16 (Office 2016?)	64-bit	32-bit	MSI	"C:\Program Files (x86)\Microsoft Office\Office16"
Office 2019 (Home and Student Retail)	64-bit	32-bit	Retail key from Microsoft's website; not Office 365 (does use C2R, however)	"C:\Program Files (x86)\Microsoft Office\root\Office16"

* Location not yet verified by Drew Naylor.