I also have this issue been dealing with the Adobe Enterprise support team but they've been of not assistance.
IN this case I already have UAC turned off on my machine but still have explorer.exe crashing.
In my event log during the installation process i get:-
Event ID 10006 Application or service 'Windows Explorer' could not be shut down.
I should add the applications eventually appear to install properly after i start explorer.exe with Task Manager again.