Given that I am currently a windows user on visual studio, I'm not exactly sure how I would get started with neovim and deoplete. The instructions on deoplete [0] assume you're not running on windows, to start, and looking in the issues [1] It's not supported
[0] https://github.com/zchee/deoplete-clang [1] https://github.com/zchee/deoplete-clang/issues/57