Only because it is written in binary format, we cannot read it directly.īut if you have product key finder tool iSunshare Product Key Finder in hand, everything will be different. So if you can find the registry file, Office 2016 product key will also be found. Office 2016 product key is also stored in the system registry file after installation. Generally, once the software is installed on computer, its product key will be saved in registry file automatically. Way 1: Find your Office 2016 product key in system registry Way 3: Find Office 2016 product key on a sticker.Way 2: Find Office 2016 product key associated with Microsoft account.Way 1: Find Office 2016 product key in system registry.Now in this article, we will list all the possible ways that you can find Office product key online or on your computer. How can I find or recover Office 2016 professional product key after installation, when I want to reformat my computer or reinstall Office 2016 on a new PC? How to Recover Office 2016 Product Key after Installation