One of the prerequisites of Microsoft Dynamics GP 2016 R2 is .NET 4.6. However, occasionally when installing it, the Microsoft Dynamics GP 2016 Bootstrapper Setup will throw an error showing that the .NET Framework installation failed:
Microsoft Dynamics GP 2016 Bootstrapper Setup
An error occurred while installing system components for Microsoft Dynamics GP 2016 Bootstrapper. Setup cannot continue until all system components have been installed.
The problem is that neither this error message nor the error log it directs you to contains information as to the cause of the error.