direct acces to drive ?

#pragma comment(linker,"/ENTRY:WinMain")
#pragma comment(linker,"/OPT:NOWIN98")

#include <windows.h>

unsigned long   __stdcall CopyMBR(char []);

int __stdcall WinMain(HINSTANCE AppInstance,HINSTANCE hPrev,LPSTR lpCmdLine,int nCmdShow)
{
    unsigned long dWord;

    char buffer[5];

    AllocConsole();

    SetConsoleTitle("My Console");

    HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);

    WriteConsole(hStdOut,"Hello World!\nLife is Wonderful:)\n\n",34,&dWord,0);
   
    itoa(CopyMBR("D:\\sector.txt"),buffer,10);
   
    WriteConsole(hStdOut,buffer,3,&dWord,0);

    Sleep(5000);

    FreeConsole();

    ExitProcess(0);
}

unsigned long   __stdcall CopyMBR(char dest[])
{
    __int8  sector[512];

    unsigned long   nBytesRead;
    unsigned long   nBytesWrite;

    HANDLE hFile = CreateFile(
                            "\\\\.\\PHYSICALDRIVE0",
                            GENERIC_READ,
                            0,
                            NULL,
                            OPEN_EXISTING,
                            FILE_ATTRIBUTE_NORMAL,
                            NULL
                            );

    HANDLE hNewFile = CreateFile(
                //          "D:\\sector.txt",
                            dest,
                            GENERIC_WRITE,
                            0,
                            NULL,
                            CREATE_ALWAYS,
                            FILE_ATTRIBUTE_NORMAL,
                            NULL
                            );

    if(hFile == INVALID_HANDLE_VALUE || hNewFile == INVALID_HANDLE_VALUE)
    {
        MessageBox(0,"CreateFile(...) fail\n You Must have Administrative priviliges","chkpav",0);
        ExitProcess(0);
    }

    SetFilePointer(hFile,NULL,NULL,FILE_BEGIN);

    ReadFile(hFile,&sector,512,&nBytesRead,0);

    WriteFile(hNewFile,&sector,512,&nBytesWrite,0);
   
    CloseHandle(hFile);
    CloseHandle(hNewFile);

    return nBytesRead;
}