Navigate to Help Menu and select Licensing.Open MATLAB (If the license has already expired the activation client will launch and you can skip the next step).If the Total Academic Headcount License you are using has been renewed, you will need to update your license file to continue using MATLAB. How can I update or reactivate my Total Academic Headcount (TAH) License? MATLAB is available for Windows, Mac and Linux. Staff and students are able to install MATLAB on unmanaged University owned PCs and personally owned devices through this link to the University MATLAB Portal. Once installed, it will appear on the Start Menu. On staff and research graduate PCs managed by IT Services, MATLAB can be installed by searching for Software Center from the Start Menu MATLAB is installed on all IT Services classroom PCs.