Installing Platform Toolset v120 under Visual Studio 2015

Question

With Visual Studio 2015 trying to build a C/C++ project that needs Platform Toolsets v120.
The required platform toolsets are not getting populated:

Answer 1

Your project has referred Visual Studio 2010 as toolset, but your machine doesn't have VS 2010 installed. You need to install VS 2010 (and not VS2013) on your machine.

Why don't you just compile it on VS 2015 itself? For previous versions of Windows, just use "Windows XP" toolset.