Why are you trying to install from the command line? As far as I can see, the installation is a standard .MSI file, which means you just double click the file and it should load the installer for you:
Install MongoDB Community Edition on Windows — MongoDB Manual 3.4[
^]
Probably, the installer is waiting for you to acknowledge the UAE admin requirement, but for some reason you can't see the UAE dialog - I've had that occasionally when I am doing a few things at the same time. Try ALT + TAB to see if the UAE dialog is there anywhere.