There are diffezrent AV programs on Win7 and Win8; unlikely the problem.
No complaints coming from either progam. The installer is “safe to run”.
The Ultra USB 3.0 is plugged into a USB 2.0 socket on Win7 machine; into a USB 3.0 socket on Win8.
Both machines are current with respect to firmware and Microsoft patch levels.
I used sysinternals procmon to record the system calls
to see if there was one that failed.
Ans: No failed system calls.
No system calls after creating/confirming my password, accepted as “excellent”.
I confirmed there was no other version of the installer running ( I rebooted ),
and confirmed there was no partial install of the product on my machines.