Windows SDK - Installation failed.

Windows SDK Fails to Installation failed.

When installing the Microsoft Windows SDK for Windows 7 and .NET Framework 4 (Windows 7 SDK), you may see the "Installation Failed" dialog:

To resolve this issue, you must uninstall all versions of the Visual C++ 2010 Redistributable before installing the Windows 7 SDK.  You may have one or more of the following products installed:

• Microsoft Visual C++ 2010 x86 Redistributable
• Microsoft Visual C++ 2010 x64 Redistributable

ref.: http://support.microsoft.com/kb/2717426