To make a long story short: I'm taking the CSWA test soon, with my student version of the software. Can my friend come over and take the test for himself on my computer, with the same instance of the software, or does everyone taking the exam need their own copy of SW?
Welcome to SolidWorks forums David.
I'm sure he can provided he has the code. You can also check with your professor or even the VAR in your area if they can offer their machine for the test.
You might also find this post helpful for your future reference