Hi,
In 64-bit OS on which .NET Framework is installed, you will have the folder namely .NETFramework in both C:\Program Files\Reference Assemblies\Microsoft\Framework and
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework locations.
On the other hand in 32-bit OS you would have .NETFramework in C:\Program Files\Reference Assemblies\Microsoft\Framework location.
Hope this helps.