I can't think I a single thing I'd need to boot into Windows for anymore.
I don't run Windows and consequently haven't used VS in any kind of intimate detail, I'm sure it's great if you like dealing with IDEs. I feel more productive with Vim, tmux, GHCI, and GraspJS for doing of my web development.
I'm pretty sure VS doesn't require nowhere near that amount and you are talking about Windows symbols.
In retrospect it's not entirely VS's fault, though I just found it amusing how quickly it ate through my storage when Vim only takes like 90 megs.