Where can I find my Installer code? (Activation key) DisplayNote Support August 25, 2021 07:34 Updated Follow Your installer code can be found on the back of your display. Please enter this to activate. Related articles System requirements Application setup Creating a DisplayNote Classroom presenter account. Getting started with DisplayNote Classroom. What is the difference between 6-digit and 10-digit session ID? Comments 0 comments Please sign in to leave a comment.