Win32_DiskDrive Signature property

Question

Does anybody know what is the Signature property of the Win32_DiskDrive WMI class? Is it unique or users can change it like disk volume serial number?

Thanks.

Answer 1

i can help you with by giving some important details about "Win32_DiskDrive WMI class".

copy following code to your c# project.

    public static string HardDiskID()
    {
        ManagementClass partionsClass = new ManagementClass("Win32_DiskDrive");
        ManagementObjectCollection partions = partionsClass.GetInstances();

        string hdd = string.Empty;

        foreach (ManagementObject partion in partions)
        {
            hdd = Convert.ToString(partion["SerialNumber"]);

            if (hdd != string.Empty)
                return hdd;
        }

        return hdd;
    }

Note--above code's "SerialNumber" string can replace with following any hard disk attributes.

  uint16   Availability;
  uint32   BytesPerSector;
  uint16   Capabilities[];
  string   CapabilityDescriptions[];
  string   Caption;
  string   CompressionMethod;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  uint64   DefaultBlockSize;
  string   Description;
  string   DeviceID;
  boolean  ErrorCleared;
  string   ErrorDescription;
  string   ErrorMethodology;
  string   FirmwareRevision;
  uint32   Index;
  datetime InstallDate;
  string   InterfaceType;
  uint32   LastErrorCode;
  string   Manufacturer;
  uint64   MaxBlockSize;
  uint64   MaxMediaSize;
  boolean  MediaLoaded;
  string   MediaType;
  uint64   MinBlockSize;
  string   Model;
  string   Name;
  boolean  NeedsCleaning;
  uint32   NumberOfMediaSupported;
  uint32   Partitions;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  uint32   SCSIBus;
  uint16   SCSILogicalUnit;
  uint16   SCSIPort;
  uint16   SCSITargetId;
  uint32   SectorsPerTrack;
  string   SerialNumber;
  uint32   Signature;
  uint64   Size;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
  uint64   TotalCylinders;
  uint32   TotalHeads;
  uint64   TotalSectors;
  uint64   TotalTracks;
  uint32   TracksPerCylinder