Microsoft has retired mainstream support for Office 2016. While you cannot legally download the ISO for free from Microsoft’s public website anymore, legitimate users can still obtain the installation media through the following official channels.
This guide outlines the legitimate methods for acquiring Office 2016 ISO files and what to look out for during the process.
Need help verifying a downloaded ISO? Check the official Microsoft SHA-1 file hashes (available via VLSC or MSDN only).
Once you've downloaded the Office 2016 ISO file, follow these steps to install it: