So I went to see what logs I could find. Found some here:
C:\Users[USERNAME]\AppData\Roaming\BFD Drums\BFD License Manager\Logs
In BFD License Manager.txt, I could see that the licence manager downloaded the Windows installer, in a directory under my system default Downloads dir.
So I closed Licence Manager, and ran “BFD3_Update_3-4-2-4_Win.exe” in the “BFD Drums\BFD3 Update 3.4.2.4” directory under my Downloads dir. And BFD installed fine.
So you can’t install BFD with Licence Manager running currently. That surely is a bug.
Anyway - launching BFD.exe, is still crashing, with the Minidump I mentioned above, same message… “The thread tried to read from or write to a virtual address for which it does not have the appropriate access.”
I’m gonna bite the bullet and go with what others have indicated is a way to truly clean the system, using this post: