For 3ds Max 2016, the following standard product keys are used to identify the software during installation: 128H1 3ds Max Entertainment Creation Suite Standard 2016: 661H1 3ds Max with Softimage 2016: 978H1 Activation Process Report Online Activation (Recommended) Sign in to your Autodesk Account.
: If you have a legitimate license, you can find your unique serial number in your Autodesk Account under "View Details". How to Activate 3ds Max 2016 Activation Code