I could very well be wrong, but from what I briefly read, the program has to be re-written (at least part of it) so that it knows that if an input box is highlighted/activated or such via touch, then open on-screen keyboard. Clearly chrome has implemented this code, yet Microsoft isn't even supporting it's own software on its own hardware. Just baffling. One of the reasons I really love windows 10. Despite it's issues, if I touch the url box in IE (while in tablet mode) the keyboard pops up, if I touch the url box with the pen, then the handwriting pane pops up just beneath the url box.