Can't drop files on python scripts in a fresh installation of Windows

[Random832]

Python itself runs fine, but when I try to drop a file on a script it just
doesn't work.

If I try to regsvr32 the shell extension, it says: The module
"c:\windows\pyshellext.amd64.dll" failed to load.

There was no indication of any problem until this. Apparently it is linked
against "VCRUNTIME140.dll", not (or in addition to? peview shows both) the
universal CRT.

Installing the Visual C++ 2015 redistributable resolved it, but there was no
instruction for this.