The unique hardware identifier of the machine (or license server) authorized to run the software.
If you are ever unsure of your status, you can type license in the MATLAB Command Window to see your current license number, or go to to view details. If you'd like, I can help you with: Finding your Host ID for a new activation Setting up a network license server (FlexNet) Comparing student vs. home pricing for renewals
: Log into the MathWorks License Center, deactivate the old machine profile, create a new activation using your current Host ID, and replace the old .lic file.
The license.lic file is generated by the MathWorks License Center. It is unique to your specific license number and host machine. The file typically contains: