Computer crashes because of unhandler error in Visual Studio

Question

I've faced some rather strange problem when writing a C# code. I have the following classes:

• A Node class:

  class Node
  {
      public char value;
      public Node left;
      public Node right;
  
      public Node(char _value)
      {
          value = _value;
          left = null;
          right = null;
      }
  }
  

• A Tree class:

  class Tree
  {
      private Node root;
  
      public Tree(Node _root)
      {
          root = _root;
      }
  
      public void Inorder(Node root)
      {
          Inorder(root.left);
          Console.WriteLine(root.value);
          Inorder(root.right);
      }
  }
  

• In Main, I wrote something like:

     Node n1 = new Node('a');
     Tree tree = new Tree(n1);
     tree.Inorder(n1);
  

An unhandled exception briefly appears in the console, then my computer crashes and the "blue screen of death" appears with the following piece of information:

• Stop code: KMODE_EXCEPTION_NOT_HANDLED
• What failed: clipsp.sys

When I try to open my Main file after the computer is restarted, it contains this:

    <?xml version="1.0" encoding="utf-8"?>
    <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Mi

Now I know my code is not right (there is a null unhandled exception, because it tries to find the left child of a "null" node), but I'm pretty sure my computer shouldn't behave like this.

I've disabled my Fast Startup feature as I found this on the internet, but it still crashes. If somebody has any idea where the problem is, I would be grateful.