To activate your instance, navigate to the Settings -> License in the Web Management Console. If you have no valid license, you will only see your installation's Deployment ID.
Click on the ACTIVATE button to bring up the Activation menu, where you should choose from the available options:
Online Activation: The server will make a request to the OPSWAT license server for a license with your Activation key and Deployment ID.
Offline Activation: You can upload a manually acquired license file from OPSWAT Portal.
Request Trial Key : If you don't have any activation key and you would like to evaluate Device Management feature, you can request a trial key via email.