Visual Studio 2015 “Hello World” Multiple Errors

Question

I'm using visual studio 2015 update 1 and I get 448 errors on my very simple console application. How can I fix these errors. I had not this problem before (visual studio 2013 was working properly.)

#include "stdafx.h"  
#include <iostream>  

using namespace std;  

int main()  
{
    cout << "Hello World";  
    return 0;  
}

Answer 1

My problem solved by reinstalling visual studio update 1 I thank this user: ulrich-eckhardt