Thanks for reporting this. Difficult to say before testing but probably it is somehow related to detected Windows version…
Update: from what I can see installer installs the wrong driver version on Windows 8.1. Instead installing Windows 8 driver it installs Windows 10 driver. This behavior is caused by that fact that both Windows 8.1 and Windows 10 have VersionNT value set to 603 and this requires a sort of workaround:
- This reply was modified 1 month ago by Vadim Smirnov.