If you've installed Visual Studio 2017 Enterprise and weren't one of the people that went over to the Individual Components tab to see what you weren't installing you probably don't have Microsoft Test Manager installed.
A couple weeks ago I was asked to present at DUT to a group of students. The presentation was quite a long one so I had to cut some bits out in order to present in the timeslot that I had. So I decided that I'd record all the content and post it up so that others can potentially benefit from it as well.