Estoy tratando de detectar la inserción y eliminación de dispositivos USB con la aplicación de escritorio WinForm C #:

 public Form1()
    {
        InitializeComponent();
        USB();
    }

luego

private void USB()
{
     WqlEventQuery weqQuery = new WqlEventQuery();
     weqQuery.EventClassName = "__InstanceOperationEvent";
     weqQuery.WithinInterval = new TimeSpan(0, 0, 3);
     weqQuery.Condition = @"TargetInstance ISA 'Win32_DiskDrive'";  
     var m_mewWatcher = new ManagementEventWatcher(weqQuery);
     m_mewWatcher.EventArrived += new EventArrivedEventHandler(m_mewWatcher_EventArrived);
     m_mewWatcher.Start();           
}

y

static void m_mewWatcher_EventArrived(object sender, EventArrivedEventArgs e)
    {
        bool bUSBEvent = false;
        foreach (PropertyData pdData in e.NewEvent.Properties)
        {
            ManagementBaseObject mbo = (ManagementBaseObject)e.NewEvent.Properties["TargetInstance"].Value;
           // ManagementBaseObject mbo = (ManagementBaseObject)pdData.Value;
            if (mbo != null)
            {
                foreach (PropertyData pdDataSub in mbo.Properties)
                {
                    if (pdDataSub.Name == "InterfaceType" && pdDataSub.Value.ToString() == "USB")
                    {
                        bUSBEvent = true;
                        break;
                    }
                }

                if (bUSBEvent)
                {
                    if (e.NewEvent.ClassPath.ClassName == "__InstanceCreationEvent")
                    {
                        MessageBox.Show ("USB was plugged in");
                    }
                    else if (e.NewEvent.ClassPath.ClassName == "__InstanceDeletionEvent")
                    {
                        MessageBox.Show("USB was plugged out");
                    }
                }
            }
        }
    }

Pero tengo una excepción conManagementBaseObject mbo = (ManagementBaseObject)pdData.Value; cuando detecta un cambio de USB:

Se produjo una excepción del tipo 'System.InvalidCastException' en Controller.exe pero no se manejó en el código de usuario

Información adicional: no se puede convertir un objeto de tipo 'System.UInt64' para escribir 'System.Management.ManagementBaseObject'.

editar

using System;
using System.Windows.Forms;
using System.Management;

namespace test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            WqlEventQuery query = new WqlEventQuery()
            {
                EventClassName = "__InstanceOperationEvent",
                WithinInterval = new TimeSpan(0, 0, 3),
                Condition = @"TargetInstance ISA 'Win32_DiskDrive'"
            };

            using (ManagementEventWatcher MOWatcher = new ManagementEventWatcher(query))
            {
                MOWatcher.EventArrived += new EventArrivedEventHandler(DeviceInsertedEvent);
                MOWatcher.Start();
            }
        }

        private void DeviceInsertedEvent(object sender, EventArrivedEventArgs e)
        {
            using (ManagementBaseObject MOBbase = (ManagementBaseObject)e.NewEvent.Properties["TargetInstance"].Value)
            {
                bool DriveArrival = false;
                string EventMessage = string.Empty;
                string oInterfaceType = MOBbase.Properties["InterfaceType"]?.Value.ToString();

                if (e.NewEvent.ClassPath.ClassName.Equals("__InstanceDeletionEvent"))
                {
                    DriveArrival = false;
                    EventMessage = oInterfaceType + " Drive removed";
                }
                else
                {
                    DriveArrival = true;
                    EventMessage = oInterfaceType + " Drive inserted";
                }
                EventMessage += ": " + MOBbase.Properties["Caption"]?.Value.ToString();
                this.BeginInvoke((MethodInvoker)delegate { this.UpdateUI(DriveArrival, EventMessage); });
            }
        }

        private void UpdateUI(bool IsDriveInserted, string message)
        {
            if (IsDriveInserted)
            {
                this.label1.Text = message;
            }             
            else
            {
                this.label1.Text = message;
            }                
        }
    }
}