HDD ID Utility will show your HDD serial number. It is a programmer's tool. FEATURES: - use a very small DLL to show the IDs of the HDD partitions and load them in the registry - you can directly import function from DLL or you can read the key that was stored in registry by the program for you - it is really small (the DLL size is only 15K) - it is freeware - it doesn't need to be installed/uninstalled