"iTunes Cannot Run Because Some of its Required Files are Missing"

Same with me. Apple Support explains how to uninstall iTunes completely (you need to uninstall all other apps from Apple). I did what they say, but when I try to install any other version of iTunes (even the 12.12, including 12.6.3, 12.4.3 and 12.11.4.15) the installer says that I have a newer version installed and stops. And when I enter the Microsoft store to download iTunes installer, there's a message that says that "iTunes no está disponible actualmente" (iTunes is not available in this moment). It seems Microsoft knows what's happening and has canceled the iTunes downloads by now.

same for me

but itunes doesn't start either...

js

Does not work, get the same error.

This appears to be a language-related bug. See here.

Same problem here and one of my friend his windows 10 version in English language and he is not facing this issue and my pc in different language !

Did you just install the file while the iTunes with problem still in the computer or you unninstaled the previous iTunes?

I uninstalled the previous.

And do you lost your library or when you install the new file all of your songs appears on iTunes?

My bought (from iTunes store) musics were ready to download and those locally stored could be located by adding their folder on iTunes preferences (they stay out of the iTunes media folder.)

In Microsoft Store-->iTunes downloading there's a message that says: "iTunes is currently not available". ¿Is there another web page to download this new iTunes version for Win10?

You are right, it's already available. And it works.

Apple release an update for Microsoft Store and Apple Software Update and everything is fine now.