deniedbysystem Windows.Devices

Question

我正在制作一个Windows商店设备应用，以便在我的设备插入时进入自动播放，但是当我尝试访问应用中的任何数据时，我不断获得deniedBySystem而我是不确定如何访问我的设备。

private async void OpenDevice()
{
   UInt32 vid = 1234;/*stand in vid and pid not real ones i  use in my code*/
   UInt32 pid = 5678;
   lstResults.Items.Clear();
   string aqs = UsbDevice.GetDeviceSelector(vid, pid);
   int counter = 0;
   var myDevices = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync();
   //var myDevices = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(aqs); /*I was using this but it wasn't returning any device*/
   for (int i = 0; i < myDevices.Count; i++)
   {
       try
       {
           if (myDevices[i].Id[4] == 'U' && myDevices[i].Id[8] == 'V' && myDevices[i].Id.Substring(12, 4) == vid.ToString())/* this if statements makes it so I only get the device I want*/
           {
               lstResults.Items.Add("VID " + myDevices[i].Id.Substring(12, 4) +
                    "          PID " + myDevices[i].Id.Substring(21, 4));
               counter++;
               var deciceAccessInfo = Windows.Devices.Enumeration.DeviceAccessInformation.CreateFromId(myDevices[i].Id);
               lstResults.Items.Add(deciceAccessInfo.CurrentStatus.ToString()); // this line informs me access is denied 
               //  lstResults.Items.Add(myDevices[i].Id);

               var usbDevice = await UsbDevice.FromIdAsync(myDevices[i].Id);//this line returns usbDevice to equal null
           }
       }
       catch (Exception exception)
       {
           lstResults.Items.Add(exception.Message.ToString());
       }
   }
   lstResults.Items.Add(counter + " out of " + myDevices.Count + " Have the correct VID");
}

在Package.appxmanifest我检查了所有功能，以防其中一个拒绝我访问，但事实并非如此。我也尝试以管理员身份运行该程序，看看是否能让我访问，但没有快乐。所以我的问题是什么让我无法访问并且有办法绕过它吗？