Windows 7 SDK Fails to Install with Return Code 5100 （GRMSDK_EN_DVD.iso）

来源：http://support.microsoft.com/kb/2717426/de

不对全文做翻译了，总结一下：

原因：电脑上已经安装了新版本的Visual C++ 2010 Redistributable运行库

解决办法：卸载Visual C++ 2010 Redistributable，然后再安装GRMSDK_EN_DVD.iso即可。

SYMPTOMS

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

OR

C:\Program Files\Microsoft SDKs\Windows\v7.1\Setup\SFX\vcredist_x64.exe installation failed with return code 5100

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CAUSE

This issue occurs when you install the Windows 7 SDK on a computer that has a newer version of the Visual C++ 2010 Redistributable installed.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. 

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RESOLUTION

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.

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