How to specify the header directory for VS 2013?

Question

C++ / C#

Installed VS to D:/, by default it looks for D:/VS/VC/Include, C:/Program Files(x86)/Microsoft SDKs/Windows
Can't find "Windows.h"

Answer 1

windows.h is the standard header.
And so, in the project properties, you can specify the paths to libs, headers and executable files.
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For the future: it is better to put VS in the default path so that everything is correctly searched.

Answer 2

I met the studio 2013 distribution in which, due to an error, the Windows SDK was not installed and, accordingly, there are no headers. It looks like your case. The cure is simply to reinstall the Windows SDK