Rename method of the Win32_ComputerSystem Class

Netdom renamecomputer <old_server_name> /NewName:<new_server_name> /UserD:<Domain\User_Name> /PasswordD:<password>

Please use above cmd it shuold work and it will update DNS records also

Despite the documentation, this method appears to work for renaming domain joined computers remotely. I have used this from my Win7 computer against remote XP and Win7 computers using my domain credentials.

With clear text password:

Get-WmiObject Win32_ComputerSystem -ComputerName OLDNAME -Authentication 6 |
ForEach-Object {$_.Rename("NEWNAME","PASSWORD","USERNAME")}

With password masked with Get-Credential:

$credential = Get-Credential
Get-WmiObject Win32_ComputerSystem -ComputerName OLDNAME -Authentication 6 |
ForEach-Object {$_.Rename("NEWNAME",$credential.GetNetworkCredential().Password,$credential.Username)}

Rebooting for change to take effect:

Get-WmiObject Win32_OperatingSystem -ComputerName OLDNAME |
ForEach-Object {$_.Win32Shutdown(6)}

Attach my c++ code, it's kind of a combination of http://msdn.microsoft.com/en-us/library/aa390423(VS.85).aspx and http://msdn.microsoft.com/en-us/library/aa390421(VS.85).aspx



int set_computer_name(const string &newname/*, const string &username, const string &password*/)
{
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, // 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, // 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_ComputerSystem"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);

if (FAILED(hres))
{
cout << "Query for operating system name failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
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;
}

// set up to call the Win32_ComputerSystem::Rename method
BSTR MethodName = SysAllocString(L"Rename");
BSTR ClassName = SysAllocString(L"Win32_ComputerSystem");

IWbemClassObject* pClass = NULL;
hres = pSvc->GetObject(ClassName, 0, NULL, &pClass, NULL);

IWbemClassObject* pInParamsDefinition = NULL;
hres = pClass->GetMethod(MethodName, 0,
&pInParamsDefinition, NULL);

IWbemClassObject* pClassInstance = NULL;
hres = pInParamsDefinition->SpawnInstance(0, &pClassInstance);

// Create the values for the in parameters
wstring val;
BSTR NewName;
val.assign(newname.begin(), newname.end());
NewName = SysAllocString(val.c_str());

VARIANT varName;
varName.vt = VT_BSTR;
varName.bstrVal = NewName;

// Store the value for the in parameters
hres = pClassInstance->Put(L"Name", 0,
&varName, 0);
wprintf(L"Set computer name to %s\n", V_BSTR(&varName));

VARIANT var;
CIMTYPE pType;
LONG pFlavor;
pclsObj->Get(L"__PATH",0,&var,&pType,&pFlavor);

// Execute Method
IWbemClassObject* pOutParams = NULL;
hres = pSvc->ExecMethod(var.bstrVal, MethodName, 0,
NULL, pClassInstance, &pOutParams, NULL);

if (FAILED(hres))
{
cout << "Could not execute method. Error code = 0x"
<< hex << hres << endl;
VariantClear(&varName);
SysFreeString(ClassName);
SysFreeString(MethodName);
SysFreeString(NewName);
pClass->Release();
pInParamsDefinition->Release();
pOutParams->Release();
return 1; // Program has failed.
}

// To see what the method returned,
// use the following code. The return value will
// be in &varReturnValue
VARIANT varReturnValue;
hres = pOutParams->Get(_bstr_t(L"ReturnValue"), 0,
&varReturnValue, NULL, 0);

// Clean up
//--------------------------
VariantClear(&varName);
VariantClear(&varReturnValue);
SysFreeString(ClassName);
SysFreeString(MethodName);
SysFreeString(NewName);
pClass->Release();
pInParamsDefinition->Release();
pOutParams->Release();
return 0;

}

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

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

return 0; // Program successfully completed.

}