c# - プログラムで復元ポイントを作成する

Question

以下を含むいくつかの解決策を確認し、利用/調整しましたが、2 つのエラーのうちの 1 つが発生し続けます。私はどちらかを得る

************** Exception Text **************
System.Runtime.InteropServices.COMException (0x80070422)
at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
at System.Management.ManagementObject.InvokeMethod(String methodName, ManagementBaseObject inParameters, InvokeMethodOptions options)
at Check_In_Tool.checkInForm.CreateRestorePoint() in C:\Users\Greg\Source\Repos\Check In Tool\Check In Tool\Check In Tool\Form1.cs:line 268
at Check_In_Tool.checkInForm.button1_Click(Object sender, EventArgs e) in C:\Users\Greg\Source\Repos\Check In Tool\Check In Tool\Check In Tool\Form1.cs:line 64
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam))

また

RPC サーバーが利用できません。(HRESULT からの例外: 0x800706BA)

現在使用しているコードは次のとおりです。

try
{
    // select local computer
    ManagementScope ManScope = new ManagementScope("\\\\localhost\\root\\DEFAULT");
    // create system restore point
    ManagementPath ManPath = new ManagementPath("SystemRestore");
    // select default options
    ObjectGetOptions ManOptions = new ObjectGetOptions();
    // create management class with previous options
    ManagementClass ManClass = new ManagementClass(ManScope, ManPath, ManOptions);
    // load function parameters
    ManagementBaseObject ManBaseObject = ManClass.GetMethodParameters("CreateRestorePoint");
    // description
    ManBaseObject["Description"] = "Check-In Tool Restore Point";
    // type of the restore point
    ManBaseObject["RestorePointType"] = 0;
    // type of the event
    ManBaseObject["EventType"] = 100;

    ManagementBaseObject OutParam = ManClass.InvokeMethod("CreateRestorePoint", ManBaseObject, null);

    restLabel.Text = "Restore Point Set: Yes";
}
catch (ManagementException err)
{
    restLabel.Text = "Restore Point Set: No - Error";
    MessageBox.Show(err.Message);
}

編集:コードを err.Message から err.ToString() に更新し、いくつかの新しい情報を取得しました。問題は、明らかに、次のコード行にあります。

ManagementBaseObject OutParam = ManClass.InvokeMethod("CreateRestorePoint", ManBaseObject, null);

何か案は？