Mathematica is available free of charge for U-M faculty and staff only on personal computers. This is referred to as a "home-use license". If you're trying to install this on a university-owned computer, please see that section below.
With contributions from the College of Engineering, Information and Technology Services (ITS) has obtained a software license for Wolfram Mathematica that is available for all University of Michigan students to download to their personal computers at no cost.
To begin, students must first set up a Wolfram ID using their umich.edu email address, then request activation under the U-M student license: 3075-0074
This is a low-percentage event but is known to happen occasionally.
A university-owned machine that travels off-campus (such as a laptop) must use the "Mathematica for Sites" license.