Problem with Inheritance in c#

Question

Dear all,

 

i have a confusion with interface.

 

i have created a method in interface and trying to give implementation in the derived class.

 

i am trying to declare the method with access specifiers but with access specifiers, i am getting an error.

 

Please help me. 

 

below is my code.

 

using System;

public interface Windows

{

private void Configuration();

}

class Windows_7:Windows

{

public void Configuration()

{

Console.WriteLine("this O.S. is protected by microsoft security team");

Console.WriteLine("This is 32 bit O.S.");

}

}

class Program

{

public static void Main(string[]args)

{Windows_7 obj = new Windows_7();

obj.Configuration();

obj.Test();

Console.ReadLine();

}

}