Category: .NET

22 Jun 2016 04:50

Joined:	16/10/2008
Level:	Silver
Points:	116

Points:	5

How to get computer serial number using windows application c# on windows 10 OS

Hi,
Please help me, i have a windows application that is working fine on machines with windows 7 operating system,but when I run/deploy the system on windows 10 machine it does not work.
This app is suppose to get a serial number of the machine the app is running on,as well as the person logged in on a computer.

Below is the code that i am using to get computer serial number,it is working well on windows 7,but not on windows 10.

void GetSerialNumber()
{
//Get machine serial number

SelectQuery Sq = new SelectQuery("Win32_BIOS");
ManagementObjectSearcher objOSDetails = new ManagementObjectSearcher(Sq);
ManagementObjectCollection osDetailsCollection = objOSDetails.Get();
foreach (ManagementObject mo in osDetailsCollection)
{

string[] BIOSVersion = (string[])mo["BIOSVersion"];
string s2 = null;
foreach (string version in BIOSVersion)
{
s2 += version;
}

lblserialno.Text = mo["SerialNumber"].ToString();
}

}

#766673

22 Jun 2016 05:23

Joined:	03/05/2013
Level:	Gold
Points:	15822

Points:	2

Hi,

Have you got any error, while run the same in Windows 10. Please post more details what happen exactly when you run the same in Windows 10.

--------------------------------------------------------------------------------
Give respect to your work, Instead of trying to impress your boss.

N@veen
Blog : http://naveens-dotnet.blogspot.in/

#766688

23 Jun 2016 00:30

Joined:	05/06/2009
Level:	Gold
Points:	10245

Points:	4

you are selecting the "Win32_BIOS" why can not you try "
"Win32_OperatingSystem=@". Try the following and


ManagementObject myManagementObject = new ManagementObject("Win32_OperatingSystem=@");
string MySN = (string)myManagementObject["SerialNumber"];

If you want to get is from the registry you can the the following also


RegistryKey keyBaseX64 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
    RegistryKey keyBaseX86 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
    RegistryKey keyX64 = keyBaseX64.OpenSubKey(@"SOFTWARE\Microsoft\Cryptography", RegistryKeyPermissionCheck.ReadSubTree);
    RegistryKey keyX86 = keyBaseX86.OpenSubKey(@"SOFTWARE\Microsoft\Cryptography", RegistryKeyPermissionCheck.ReadSubTree);
    object resultObjX64 = keyX64.GetValue("MachineGuid", (object)"default");
    object resultObjX86 = keyX86.GetValue("MachineGuid", (object)"default");

By Nathan
Direction is important than speed

#766729

23 Jun 2016 07:06

Joined:	16/10/2008
Level:	Silver
Points:	116

Points:	1

Hi Nathan,
Thank you for your response,the code above I think is giving me the serial number of the operating system.i need a serial number of the computer.

see attachment for the error message I am getting when I use Win32_BIOS / BIOSVersion

Basically on the foreach loop on the code above, I get a NULLReferenceException error "Object reference not set to an instance of an object"

How to get computer serial number using windows application c# on windows 10 OS

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