two problems, one installing demo of home 7 and two MIDI pro

Hi, I can't install the home demo file. I click the home demo file and it asks me to choose language and that's as far as it gets.
I downloaded another time, home 7, and it fully installed,however when I went to use my korg nano control, I got a MIDI config message saying there was no MIDI.
I downloaded another time, home 7, and it fully installed,however when I went to use my korg nano control, I got a MIDI config message saying there was no MIDI.