Cannot open include file: ‘stdio.h’ – Visual Studio Community 2017 – C++ Error

There are three ways to solve this issue.

  1. Ignore Precompiled Headers #1
    Steps: Project > Properties > Configuration Properties > C/C++ > Command Line > in the Additional Options box add /Y-. (Screenshot of Property Pages) > Ok > Remove #include "stdafx.h"
  2. Ignore Precompiled Headers #2
    Steps: File > New > Project > … > In the Application Wizard Window click Next > Uncheck the Precompiled Header box > Finish > Remove #include "stdafx.h"
  3. Reinstall Visual Studio
    This also worked for me, because I realized that maybe there was something wrong with my Windows SDK. I was using Windows 10, but with Windows SDK 8.1. You may have this problem as well.
    Steps: Open Visual Studio Installer > Click on the three-lined Menu Bar > Uninstall > Restart your computer > Open Visual Studio Installer > Install what you want, but make sure you install only the latest Windows SDK 10, not multiple ones nor the 8.1.The first time I installed Visual Studio, I would get an error stating that I needed to install Windows SDK 8.1. So I did, through Visual Studio Installer’s Modify option. Perhaps this was a problem because I was installed it after Visual Studio was already installed, or because I needed SDK 10 instead. Just to be safe I did a complete reinstall.

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