For some reason a Visual Studio 2015 Community Edition installation I had on one of my machines was experiencing problems: solution files were not loading properly, and what’s worse is that installation instance had gone totally missing from “Uninstall a Program” in Windows Control Panel. Also, every time I tried running the setup file
vs_community.exe from the ISO image, I would get an error saying “The product version that you are trying to set up is earlier than the version already installed on this computer”.
What I ended up doing was to run the setup file with the two following switches:
vs_community.exe /uninstall /force
Luckily, it went forward with uninstalling the instance I had on my machine.