Well I got off the phone with PG Music a couple of hours ago and got some help.
Unfortunately the Tech line was not open so I had to call Sales.
The fellow was nice but really didn't know much about installations and had to keep putting
me on hold while he tried to get help answering all my questions.

PG Music should really revise their 'Read Me First' file that comes with the installation package.
It is far off from what you actually see when you try to install BIAB.
It also does not explain what boxes need to be checked during the installation.

Well to cut to the chase, I chose Option 2 when that screen finally presented itself.
I asked the fellow why BIAB installs to c:\bb when 95%+ of all programs install to
c:\Program Files or c:\Program Files (x86). He couldn't explain why.

I installed RealBand to d:\ because it seems PG Music forces you to install it somewhere.
I didn't see an option not to install it.
Now that it's installed can I delete it? I never use Real Band.

c:\ is using 27 G space. Of that 17G is being taken up by Soloists.
I think I know what Soloists is for but just want to check. It's used to play BIAB solos correct?
Can I delete the Soloists folder now?

When I was doing the installation there were 4 or 5 files that BIAB said had errors and it couldn't install them.
They were all Soloists files. I don't think that was important right? I made note of which files they were.

A BIAB user for more than 30 years (if you can believe it) !