The shortcuts are annoying, but indeed fixable in a way that's not too laborious (although still a pain in the backside). However, changing all programs separately in the registry in order for...

There was an additional weirdness in that Microsoft Office flat out refused to work. Even when running the .exe files in the install directory directly. Using the built-in reinstaller fixed that, but...

I got the Fall Creator’s update recently, and it somehow broke Windows’ indexing of programs. I'm currently on Winver: 1709 (OS Build 16299.64).

Before the problem:
Windows 10/drive C: is...