https://bugs.winehq.org/show_bug.cgi?id=47033
--- Comment #9 from Andreas Zuber a.zuber@gmx.ch --- The wine-staging patch that fixes this is wintrust-WinVerifyTrust : https://github.com/wine-staging/wine-staging/blob/master/patches/wintrust-Wi...
I just applied this one patch on top of 4.6 and the installer works again.