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Windows SDK Fails to Install with Return Code 5100
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When installing the Microsoft Windows SDK for Windows 7 and .NET Framework 4 (Windows 7 SDK), you may see the "Installation Failed" dialog which may contain the following information:
Installation of the “Microsoft Windows SDKfor Windows 7” product has reported the following error: Please refer to Samples\Setup\HTML\ConfigDetails.htm document for further information.
The setup log file contains the following error message:
C:\Program Files\Microsoft SDKs\Windows\v7.1\Setup\SFX\vcredist_x86.exe installation failed with return code 5100
C:\Program Files\Microsoft SDKs\Windows\v7.1\Setup\SFX\vcredist_x64.exe installation failed with return code 5100
This issue occurs when you install the Windows 7 SDK on a computer that has a newer version of the Visual C++ 2010 Redistributable installed. The Windows 7 SDK installs version 10.0.30319 of the Visual C++ 2010 Redistributable.
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
After uninstalling the Microsoft Visual C++ 2010 Redistributable products, you may install the Windows 7 SDK. After installing the Windows 7 SDK, you may then reinstall the newer version of the Visual C++ 2010 Redistributable products, in order to restore the Visual C++ 2010 Redistributable products to their original state.