I am having the exact same issue. I’ve downloaded Vital, run the installer and everything works fine.
When I open Vital up it automatically downloads the factory content sound pack but when I attempt to install it the progress is blocked. The installer will not accept the default directory or any other that I choose to select or create.
Opening Vital as an administrator seemingly makes no difference.
I’ve tried downloading the factory content file itself from the website, right clicking on it and opening it up with Vital, but all this seems a do is open another instance of Vital which still automatically downloads the pack from the web and then gets stuck.
Please can someone provide a definitive answer as to what the constraint / problem and resolution are here?
May I also suggest that if there is a known firewall / antivirus exception issue here, that this is added on to the error popup to advise users.