Note: The key changed from 128L1 to 128M1 starting in 2021.
If you are a freelancer who installs Max on new workstations often, the only number you really need to memorize is 128M1 (assuming you are on the latest version). 3ds max product key
Most people panic when they see the "Product Key" field. It looks like a secret code, but it’s actually much simpler than you think. Note: The key changed from 128L1 to 128M1 starting in 2021