Welcome to the community!
If you have a current Update Plan or Subscription then you should see
UVI Plug-Ins listed along with the other downloads within your Pro Tools product in
my.avid.com/products. If you don't see this then best to start a support case via the
Access the Support Center (Portal) link in your Avid account.
avid.force.com/pkb/articles/FAQ/UVI-Falcon-and-Workstation has more info about this.