#define DRIVE_UNKNOWN     0
#define DRIVE_NO_ROOT_DIR 1
#define DRIVE_REMOVABLE   2
#define DRIVE_FIXED       3
#define DRIVE_REMOTE      4
#define DRIVE_CDROM       5
#define DRIVE_RAMDISK     6

         ManagementClass manager = new ManagementClass("Win32_LogicalDisk");
         ManagementObjectCollection drives = manager.GetInstances();
         foreach( ManagementObject drive in drives )
         {            
            textInfo.Text += drive["Caption"] + " is a " + drive["Description"];
 
            // Do this to get *all* property names and values:
            //foreach( PropertyData prop in drive.Properties )
            //   textInfo.Text += prop.Name + " = " + drive[prop.Name] + " ";
 
            // Do this to get the drive type (you need constants or enums to compare to): 
            // drive["DriveType"];
 
            textInfo.Text += cr;
         }