I applied through their careers webpage and was then contacted by a university recruiter.

I had a "classic" phone interview where another interviewer asked me about the course I was taking, my personal projects, my motivation for the position, and so on.

The interview was positive because I received feedback very quickly afterwards from the recruiter, who told me I was still in the running. However, two months later, he informed me that my application was rejected without giving me reasons for the sudden change.

What motivates you to work for Microsoft?