Did a little more digging with Process Monitor going. Setup gives up after it loads
msi.dll
(the 32-bit flavor from WoW), and then checks several different registry keys in various locations named
76966AEE2E7916549A99C5223EDC4E82
, and fails to find any. Best I could tell from a quick google is that hash is likely for
Microsoft Visual C++ 2019 X64 Minimum Runtime - 14.25.28508
.
Took a peek in appwiz.cpl, and sure enough, listed is:
Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.25.28508
.
Tried to uninstall it, and it told me:
Told its sure, to remove it from the list, and it did.
Ran setup again but saw no change in behavior. (I do still have newer redists installed: 14.30.30704 for x64 and 14.30.30708 for x86)
I've attached the process monitor log from around the last registry key access before it tries to launch the installer (`EstimatedSize`), through the moment when the error message shows.
Let me know if I can help track things down further.