How to get unique Computer ID

Hello friends,

I want to get unique unchangable Machine id like Motherboard serial number or processor serial number,Hard Disk Serail Number.I tried with processor serial number and hardisk serial number that all are changing after formating and reinstalling the windows.

Can any one Provide me with a solution for getting an unique ID in Computer.

Intel Dual core 2.66 Ghz
915 MSI Motherboard with Intel Chipset
GeForce 7100
512 mb RAM
80gb HDD

Sure i will help you out with this May i know In which application are you going to write the coding for example vb, java, Asp.net etc.

I will be using Visual basic as my programming Language.


Intel Dual core 2.66 Ghz
915 MSI Motherboard with Intel Chipset
GeForce 7100
512 mb RAM
80gb HDD
Edit/Delete Message

There are many like

1. You could get the ethernet adapters MAC,
   
2. You could use the boot drive's volume name, or volume ID number,CPU's serial number,
   
3. You could write some hidden file with a random name and contents as an ID tag
   
4. You could come up with a quasi-unique identifier by gathering up specific info about this computer, like the memory size, disk sizes, VGA card memory size, VGA card name, BIOS ID code.

But i would suggest you to go with Ethernet Adapter (MAC) because it usually won't change even if you Format you PC.