Trying to install both the 15.7.1 Catalyst Software Suite or the 15.9.1 Beta, I run into the same issue.
I have used "Express uninstall all AMD Software" followed by a DDU wipe of AMD to start fresh, and the install will ALWAYS freeze at the same point.
Have even tried the Leshcat drivers which have worked in the past before, same issue. I have no idea what's causing the install to stop at this point.
I have Windows 10 and have AMD Radeon 6000M/Intel HD 3000 card.