To activate your installation of Office 2016 requires that you sign up for a Microsoft account.....you don't just type in the serial number of your software. The account is then referenced each time you use your Office 2016 modules to ensure the valid licensing. If you open and use Word, it requires a logon to your new Microsoft account the first time you use it.....and the same process for the first time you use your computer-installed version of Excel 2016. A totally different process than Office 2011.


Freedom is never free....thank a Service member today.