Locate the desired SDKManifest.xml file in the root SDK folder, and edit the file as a text file to remove the following code from the FileList element:
Make sure that the Microsoft Windows 8 Development installation option is enabled when you install the Professional, Premium, or Ultimate editions of Visual Studio 2013 Preview. If you do not know whether this option was selected during installation, locate Visual Studio 2013 Preview in the Programs and Features item in Control Panel, and then click Change to update the program. This opens the Setup menu. Click Modify, click to select the Microsoft Windows 8 Development check box, and then click Update.
Note For Windows Express 2013 Preview, the Microsoft Windows 8 Development option is not available. Therefore, you must install Visual C++Redistributable for Visual Studio 2012 on the computer and then build and run the app.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Visual Studio 2013 Preview, Visual Studio Express 2013 Preview for Desktop, Visual Studio Express 2013 Preview for Web, Visual Studio Express 2013 Preview for Windows, Visual Studio Premium 2013 Preview, Visual Studio Professional 2013 Preview, Visual Studio Test Professional 2013 Preview, Visual Studio Ultimate 2013 Preview