Q. I bought Mathematica for a course last year and it's expired. How can I extend the license so I can use it this year?

Student copies of Mathematica will require the student to obtain a new activation code every July directly from Wolfram to continue operation of their standalone copy. After the student has created a personal Wolfram account during their initial registration, the new activation code can be obtained through their Wolfram account during their time as a student at UVA. 

More information here: https://library.virginia.edu/data/research-software/mathematica-for-students