My system shows the following while trying to install r2016b in Windows 8.1(64)

Your installation may require additional configuration steps.

1. The following products require a supported compiler:

Simulink Coder 8.11
Simulink Real-Time 6.5
MATLAB Coder 3.2

2. After this installation is complete, you should continue with your configuration of the MATLAB Distributed Computing Server as outlined in the instructions obtained from www.mathworks.com/distconfig.

3. MATLAB Compiler 6.3 requires a supported compiler for creation of Excel add-ins

4. MATLAB Compiler SDK 6.3 requires the following:

* .NET framework for creation of .NET assemblies and deployable archives with Excel 
integration
* a supported compiler for creation of COM components, C and C++ Shared libraries
* a Java JDK for creation of Java packages

HOW TO SOLVE THIS

Answer 1

[Jan]

How to solve this? The instructions are given explicitly in the message already:

• After this installation is complete, you should continue with your configuration of the MATLAB Distributed Computing Server as outlined in the instructions obtained from www.mathworks.com/distconfig .
• .NET framework for creation of .NET assemblies and deployable archives with Excel integration
• a supported compiler for creation of COM components, C and C++ Shared libraries
• a Java JDK for creation of Java packages

So what exactly is your question? How can we help you?

Answer 2

[Walter Roberson]

https://www.mathworks.com/content/dam/mathworks/mathworks-dot-com/support/sysreq/files/SystemRequirements-Release2016b_SupportedCompilers.pdf

You need to install one of the following: Visual Studios C++ 2012 Professional, C++ 2013 Professional, or C++ 2015 Professional .

Some other compilers are supported for some of your toolboxes but not for others of your toolboxes. The above support all of the toolboxes mentioned in the messages.

Note: the VS Express and VS Community versions are not supported in your release.

[Jan]

I assume installing the WinSDK7.1 includes the C and C++ parts, and the .NET SDK is needed also. Both are available for free, in opposite to the Professional versions of the compilers.

[Walter Roberson]

SDK 7.1 does not support MATLAB Compiler SDK for .NET, but the VS Professional series do.

[Jan]

That's right. And there is a free and supported "Microsoft .NET Framework SDK 2.0, 3.0, 3.5, 4.0, 4.5, 4.6" also according to the list of supported compilers. But on the linked page there is the note.

 5.  MATLAB Compiler SDK supports building .NET assemblies but not COM
 objects when using the Microsoft .NET Framework SDK wit out Microsoft
 Visual Studio

[Walter Roberson]

The user was asking how to solve it and I gave the minimum set to install to cover everything; the user did not ask about free.