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 Application setup Joining a DisplayNote Classroom session. Creating a DisplayNote Classroom presenter account. Firewalls and proxies My Launcher licence is expired/invalid Comments 0 comments Please sign in to leave a comment.