If I install Minecraft on Windows, I'm probably going to download MinecraftInstaller.msi to my downloads folder, and run it from there, and after installing, I'll probably delete the install package. Say, if I want to uninstall Minecraft a year later, I'll see something like the attached photo.

This presents two problems. I don't know the version number of the installer that I'm being asked for, and even if I did, there's no publically available installer archive that I could find. I effectively cannot uninstall Minecraft without resorting to registry hackery.