How can I change win7 Boot Configuration Data(BCD) by C#

Question

I want change the BCD of windows7 by VS2010 and C#,which API should be used ?

can you give me a example if you know.

thanks!

Answer 1

Hi Rytian,

Please try WMI way: http://msdn.microsoft.com/en-us/library/windows/desktop/aa362677(v=vs.85).aspx

And the sample code is here: http://stackoverflow.com/questions/9337354/access-the-windows-7-boot-configuration-data-using-c-sharp

ConnectionOptions connectionOptions = new ConnectionOptions();
connectionOptions.Impersonation = ImpersonationLevel.Impersonate;
connectionOptions.EnablePrivileges = true;

// The ManagementScope is used to access the WMI info as Administrator
ManagementScope managementScope = new ManagementScope(@"root\WMI", connectionOptions);

// {9dea862c-5cdd-4e70-acc1-f32b344d4795} is the GUID of the System BcdStore
ManagementObject privateLateBoundObject = new ManagementObject(managementScope, new ManagementPath("root\\WMI:BcdObject.Id=\"{9dea862c-5cdd-4e70-acc1-f32b344d4795}\",StoreFilePath=\"\""), null);

ManagementBaseObject inParams = null;
inParams = privateLateBoundObject.GetMethodParameters("GetElement");

// 0x24000001 is a BCD constant: BcdBootMgrObjectList_DisplayOrder
inParams["Type"] = ((UInt32)0x24000001);
ManagementBaseObject outParams = privateLateBoundObject.InvokeMethod("GetElement", inParams, null);
ManagementBaseObject mboOut = ((ManagementBaseObject)(outParams.Properties["Element"].Value));

string[] osIdList = (string[]) mboOut.GetPropertyValue("Ids");

// Each osGuid is the GUID of one Boot Manager in the BcdStore
foreach (string osGuid in osIdList)
{
    ManagementObject currentManObj = new ManagementObject(managementScope, new ManagementPath("root\\WMI:BcdObject.Id=\"" + osGuid + "\",StoreFilePath=\"\""), null);
            MessageBox.Show("" + currentManObj.GetPropertyValue("Id"));
}

I hope this will be helpful.

Best regards,

---

Mike Feng
MSDN Community Support | Feedback to us
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Answer 2

thank you !