Clicking "Install" for Minecraft for Windows, brings up a dialog to select installation location. The installation location is not changeable and only uses the default C: location. Clicking the apparent location button to change the location, does nothing except give visual feedback that it was clicked. 

P.S. Yes, this is copy of issue MCL-21659 
No, issue MCL-21659 is NOT a duplicate of MCL-21596

Comment "You must install it on the C drive" is not a resolution of a problem. Any application supposed to have option to change installation location.

We would really appreciate if you would FIX an issue, not brush it out.