[DirectX] Solution: Error code S1023 installing DirectX SDK on Windows 7

The solution:

1. Remove the Visual C++ 2010 Redistributable Package version 10.0.40219 (Service Pack 1) from the system (both x86 and x64 if applicable). This can be easily done via a command-line with administrator rights:

    MsiExec.exe /passive /X{F0C3E5D1-1ADE-321E-8167-68EF0DE699A5}
    MsiExec.exe /passive /X{1D8E6291-B0D5-35EC-8441-6616F567A0F7}

2. Install the DirectX SDK (June 2010)

3. Reinstall the Visual C++ 2010 Redistributable Package version 10.0.40219 (Service Pack 1). On an x64 system, you should install both the x86 and x64 versions of the C++ REDIST. Be sure to install the most current version available, which at this point is the KB 2565063 with a security fix.

Reference:

Known Issue: DirectX SDK (June 2010) Setup and the S1023 error