可以试试使用WMI（在msdn上有详细的信息）:
硬盘序列号: 用Win32_PhysicalMedia class.
CPU编号: 用Win32_Processor class.
BIOS编号: 用Win32_BIOS class.

下面例子取得硬盘的序列号，其他的用法也类似(msdn上的例子，把Win32_OperatingSystem改成了Win32_PhysicalMedia）:

#define _WIN32_DCOM
#include <iostream>
using namespace std;
#include <comdef.h>
#include <Wbemidl.h>

# pragma comment(lib, "wbemuuid.lib")

int main(int argc, char **argv)
{
HRESULT hres;

// Step 1: --------------------------------------------------
// Initialize COM. ------------------------------------------

hres = CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
cout << "Failed to initialize COM library. Error code = 0x"
<< hex << hres << endl;
return 1; // Program has failed.
}

// Step 2: --------------------------------------------------
// Set general COM security levels --------------------------
// Note: If you are using Windows 2000, you need to specify -
// the default authentication credentials for a user by using
// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
// parameter of CoInitializeSecurity ------------------------

hres = CoInitializeSecurity(
NULL,
-1, // COM authentication
NULL, // Authentication services
NULL, // Reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication
RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
NULL, www.rixia.cc // Authentication info
EOAC_NONE, // Additional capabilities
NULL // Reserved
);

if (FAILED(hres))
{
cout << "Failed to initialize security. Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}

// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------

IWbemLocator *pLoc = NULL;

hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *) &pLoc);

if (FAILED(hres))
{
cout << "Failed to create IWbemLocator object."
<< " Err code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}

// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method

IWbemServices *pSvc = NULL;

// Connect to the root\cimv2 namespace with
// the current user and obtain pointer pSvc
// to make IWbemServices calls.
hres = pLoc->ConnectServer(
_bstr_t(L"ROOT\\CIMV2"), // Object path of WMI namespace
NULL, // User name. NULL = current user
NULL, // User password. NULL = current
0, // Locale. NULL indicates current
NULL, // Security flags.
0, http://www.rixia.cc // Authority (e.g. Kerberos)
0, // Context object
&pSvc // pointer to IWbemServices proxy
);

if (FAILED(hres))
{
cout << "Could not connect. Error code = 0x"
<< hex << hres << endl;
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}

cout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;

// Step 5: --------------------------------------------------
// Set security levels on the proxy -------------------------

hres = CoSetProxyBlanket(
pSvc, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
NULL, // client identity
EOAC_NONE // proxy capabilities
);

if (FAILED(hres))
{
cout << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}

// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----

// For example, get the name of the operating system
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_PhysicalMedia"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);

if (FAILED(hres))
{
cout << "Query for physical media failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release()http://www.rixia.cc;
CoUninitialize();
return 1; // Program has failed.
}

// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------

IWbemClassObject *pclsObj;
ULONG uReturn = 0;

while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);

if(0 == uReturn)
{
break;
}

VARIANT vtProp;

// Get the value of the Name property
hr = pclsObj->Get(L"SerialNumber", 0, &vtProp, 0, 0);

wcout << "Serial Number : " << vtProp.bstrVal << endl;
日夏养花网 VariantClear(&vtProp);
}

// Cleanup
// ========

pSvc->Release();
pLoc->Release();
pEnumerator->Release();
pclsObj->Release();
CoUninitialize();

return 0; // Program successfully completed.
}

{
// TODO: Add extra validation here
CString str1;
char buff[1024];

typedef int (WINAPI ICEPUB_MACHINEGETINFO)(int typeFlag,char *strInfo);
ICEPUB_MACHINEGETINFO *icePub_machineGetInfo = 0;
HINSTANCE hDLLDrv = LoadLibrary("icePubDll.dll");
if(hDLLDrv)
{
icePub_machineGetInfo = (ICEPUB_MACHINEGETINFO *)GetProcAddress(hDLLDrv, "icePub_machineGetInfo");
}

icePub_machineGetInfo(1,buff);
str1=buff;//mac
icePub_machineGetInfo(2,buff);
str1=str1+buff;//cpu
icePub_machineGetInfo(3,buff);
str1=str1+buff;//hard
icePub_machineGetInfo(4,buff);
str1=str1+buff;//memery
icePub_machineGetInfo(5,buff);
str1=str1+buff;//biosdate
AfxMessageBox(str1);

}

//icePubDll.dll可baidu之

下一个cpu-z软件，查看下就可以了，超级简单超级方便，主板硬盘CPU等等全能日夏养花网看到

办法一.
注意看开机画面,开机会显示的啊,一般都是AWORD和AMI的BIOS.注意显示后的VER版本号,就可以看到BIOS日期和序列号.
办法二.
用EVEREST或优化大师检测可以看到系统BIOS和显卡BIOS等信息.
用CPU-Z也可以,你自己试下.

1、防伪标记刮不开说明这个标记是假的（俺不信你不会刮）；
2、电脑主板上有型号，通电后序列号可在显示器上看到。

不会 硬件序列号，不会改变。

你说的这几个序列号都不会改变的。你重装系统也不会改变的。

cpu

都是不会变的