Как читать данные MBR в системе Windows

Я использую файл с кодом MBR со смещением 54 байта.
В функции main () я вызываю OpenMBbrFile (), затем ReadMbrData ().
Однако я не могу правильно прочитать MBR в моем буфере. Пожалуйста, помогите мне с проблемой …………………………………….. ………………………………………….. ………………………………………….. ………………………………………….. ………………………………………….. ………………………………………….. ………………………………………….. ………………………………………….. ……..

BOOL OpenMbrFile(LPWSTR sPath)
{

cout << "OpenMBR: Create Handle" << endl;

m_hMbrFile = CreateFile(sPath
, GENERIC_READ
, FILE_SHARE_READ
, NULL
, OPEN_EXISTING
, FILE_ATTRIBUTE_NORMAL
, NULL);

if (m_hMbrFile == INVALID_HANDLE_VALUE) return FALSE;

return TRUE;
}

BOOL CloseMbrFile()
{

cout << "CloseMBR: Closing Handle" << endl;

BOOL bReturn = TRUE;

if (m_hMbrFile != INVALID_HANDLE_VALUE)
bReturn = CloseHandle(m_hMbrFile);

m_hMbrFile = NULL;

cout << "Returning from CloseMBR" << endl;

return bReturn;
}BOOL ReadMbrData()
{

cout << "ReadMBR: Initialization" << endl;

BOOL bReturn = FALSE;
DWORD dwByteRead = 0;
LARGE_INTEGER filepointer;
filepointer.QuadPart = 54;  //MBR data in File at offset 54
BYTE* pBuff = NULL;
pBuff = new BYTE[512];
if (!pBuff)
{
cout << "ReadMBR: Cleaning Stuff up" << endl;
if (pBuff) delete[] pBuff;
CloseMbrFile();
ClosePhysicalDrive();
return bReturn;
}

if (m_hMbrFile == INVALID_HANDLE_VALUE) return FALSE;

cout << "ReadMBR: Setting fp" << endl;

if(!SetFilePointerEx(m_hMbrFile, filepointer, NULL, FILE_BEGIN))
{
cout << "Failed to SetFilePointer ( " << m_hMbrFile << ", " << filepointer.QuadPart << ", 0, FILE_BEGIN)" << endl;
cout << "ReadMBR: Cleaning Stuff up" << endl;
if (pBuff) delete[] pBuff;
CloseMbrFile();
ClosePhysicalDrive();
return bReturn;

}

cout << "ReadMBR: Starting to read File" << endl;

bReturn = ReadFile(m_hMbrFile, pBuff, sizeof(*pBuff), &dwByteRead, 0);

if (bReturn)
bReturn = (sizeof(*pBuff) == dwByteRead);       //Need to check this condition? shd it be 512 or size of wud do??

cout << "ReadMBR: Cleaning Stuff up" << endl;
if (pBuff) delete[] pBuff;
CloseMbrFile();
ClosePhysicalDrive();

return bReturn;
}