So this time I got a problem with autocompletion of some extra modules, like os, json etc.
All this modules placed at python27.zip but if I attach this to reference path, VS crashes all the time.
So, here is a workaround.
Install clear python 2.7 from official site to, for example C:\python27
Then copy from C:\Program Files\Autodesk\Maya2017\devkit\other\pymel\extras\completion\py all the files to C:\Python27\Lib
Switch back to your VS python setting, update intellisence lib and you should be good to go!
Just in case, my search paths for Maya 2017 is here