Well that was a lot of fun.

So I got my 2017 USB key a few weeks ago and just had time now to attempt the installation.
'Attempt' is the operative word here.
I wanted to install on the key itself as I don't have much hard drive space and would like to run the program off a key.
Towards what I thought was the end of the installation it complained about reading a few files (couldn't read them) but it marched on.
Then the big problems occurred:
Installation of the component Loops02.exe was cancelled.
(Despite my de-selecting loops for installation)
Would you like to quit the entire installation?
WTF???
Of course not!
and then...
Installation of the component high_instruments_sforzando.exe was cancelled.
Would you like to quit the entire installation?
WTF???
and then...
Installation of the component realtracks_pro_1.exe was cancelled.
Would you like to quit the entire installation?
WTF???
and then...
Installation of the component realtracks_pro_2.exe was cancelled.
Would you like to quit the entire installation?
WTF???
and then...
Installation of the component realtracks_pro_3.exe was cancelled.
Would you like to quit the entire installation?
WTF???
At which point I realized it was hopeless to continue.

Pro guidance would be appreciated here.
PG Music support was closed when I called.'