Depends on which version of VS 2012 you installed. The professional version and higher includes the Windows 8 SDK, so if you do not plan to develop applications for Windows XP or earlier versions of the OS, there is no need to install the SDK separately - you already have it.
However, if you installed VS 2012 Express, I would suggest referring to the online documentation for clarification on this issue.
Mark Nov 04 2018-12-12T00: 00Z
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