上面这几句报的错，怎样解决啊？程序本来运行好好的，现在报下面的错误（其他电脑上没有问题）

************** Exception Text ************** System.Runtime.InteropServices.COMException (0x80070433): 服务不存在，或已被标记为删除。 (Exception from HRESULT: 0x80070433)    at System.Management.ThreadDispatch.Start()    at System.Management.ManagementScope.Initialize()    at System.Management.ManagementObjectSearcher.Initialize()    at System.Management.ManagementObjectSearcher.Get()    at MedicalFornt_Data.Data.GetSerialPort() in e:\项目\MedicaFornt_Data\MedicaFornt_Data\Data.cs:line 912    at MedicalFornt_Data.Data.StartReceive() in e:\项目\MedicaFornt_Data\MedicaFornt_Data\Data.cs:line 61    at MedicalFornt_Data.Data.Form1_Load(Object sender, EventArgs e) in e:\项目\MedicaFornt_Data\MedicaFornt_Data\Data.cs:line 55    at System.Windows.Forms.Form.OnLoad(EventArgs e)    at System.Windows.Forms.Form.OnCreateControl()    at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)    at System.Windows.Forms.Control.CreateControl()    at System.Windows.Forms.Control.WmShowWindow(Message& m)    at System.Windows.Forms.Control.WndProc(Message& m)    at System.Windows.Forms.ScrollableControl.WndProc(Message& m)    at System.Windows.Forms.Form.WmShowWindow(Message& m)    at System.Windows.Forms.Form.WndProc(Message& m)    at MedicalFornt_Data.Data.WndProc(Message& m) in e:\项目\MedicaFornt_Data\MedicaFornt_Data\Data.cs:line 748    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)