How to determine if .NET Core is installed

Question

I know that for older versions of .NET, you can determine if a given version is installed by following

https://support.microsoft.com/en-us/kb/318785  
         


        

Answer 1

Look in C:\Program Files\dotnet\shared\Microsoft.NETCore.App to see which versions of the runtime have directories there. Source.

A lot of the answers here confuse the SDK with the Runtime, which are different.