As we reminded you yesterday, when Office 2016 is installed on a system that contains InfoPath 2013 the program will be removed because there is no updated version in Office 2016.
You can download InfoPath 2013 from Microsoft's Download Center to reinstall it on your system:
InfoPath 2013 is a forms-creation and data-gathering tool that helps organizations streamline business processes. InfoPath 2013 is designed for both advanced business users and developers. Without writing code, users can design sophisticated electronic forms to quickly and cost-effectively gather information. Developers can create advanced forms for departmental and enterprise business processes, including composite applications and workflow sequences.
The download and use of InfoPath 2013 software requires an active Office 365 ProPlus subscription.
Download: InfoPath 2013 for Office 365 ProPlus Subscription from the Microsoft Download Center