wmic path softwarelicensingservice get OA3xOriginalProductKey Command Prompt to retrieve keys stored in the system BIOS. Microsoft Community Hub Are you trying to recover a lost key multiple installations on different computers?
: For Office 2016, the full 25-character product key is typically not stored in plain text on your computer after activation. Only the last 5 characters are viewable via command-line tools.
: This is a common Google Dork (advanced search operator) used to find open directories on web servers. People often search for index of "ms office 2016 product key" to find publicly hosted text files or documents containing license keys.
: Once activated, your Office 2016 license is permanently linked to your Microsoft Account