Commented Issue: System.IO.FileNotFoundException when registering task under 64 bit Windows 10 Pro Insider Preview Build 10158 [12142]

At the moment I'm running into this problem on 64 bit Windows 10 Pro Insider Preview Build 10158. Same call works on 64 bit Windows 8.1 Pro.

System.IO.FileNotFoundException, The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
at Microsoft.Win32.TaskScheduler.V2Interop.ITaskFolder.RegisterTaskDefinition(String Path, ITaskDefinition pDefinition, Int32 flags, Object UserId, Object password, TaskLogonType LogonType, Object sddl)
at Microsoft.Win32.TaskScheduler.TaskFolder.RegisterTaskDefinition(String Path, TaskDefinition definition, TaskCreation createType, String UserId, String password, TaskLogonType LogonType, String sddl)

Used .NET-Framework 2.0 - Version 2.3.4.0

In fact I'm using the TaskCreation.CreateOrUpdate enum value and the process is elevated. Let me give you some more information:

I'm using a RegistrationTrigger, with a delay of 8 seconds and a EndBoundary of 20 seconds.
* RunLevel is TaskRunLevel.LUA
* DeleteExpiredTaskAfter is 40 seconds
* Principal.UserId is the UserName of the Win32_ComputerSystem ManagementObject (Example: WIN-GVLEGB4ESV6\Test )

```
using System;
using Microsoft.Win32.TaskScheduler;
using System.Management;

namespace TestTaskScheduler
{
class Program
{
static void Main(string[] args)
{

var ts = new TaskService();

TaskDefinition td = ts.NewTask();
td.RegistrationInfo.Description = "some description";
td.Principal.LogonType = TaskLogonType.InteractiveToken;

var computerSystemClass = new ManagementClass("Win32_ComputerSystem");
var computerSystems = computerSystemClass.GetInstances();
var enumerator = computerSystems.GetEnumerator();
while (enumerator.MoveNext())
{
var computerSystem = enumerator.Current;
td.Principal.UserId = (string)computerSystem["UserName"];
}

td.Actions.Add(new ExecAction("cmd.exe", "-someparameter"));

// Create Trigger
var trigger = new RegistrationTrigger { Enabled = true };
trigger.Delay = TimeSpan.FromSeconds(8);
trigger.EndBoundary = DateTime.Now + TimeSpan.FromSeconds(20);
td.Triggers.Add(trigger);

TaskFolder tf = ts.RootFolder;

td.Principal.RunLevel = TaskRunLevel.LUA;

td.Settings.StartWhenAvailable = true;
td.Settings.Hidden = false;
td.Settings.MultipleInstances = TaskInstancesPolicy.StopExisting;
td.Settings.DisallowStartIfOnBatteries = false;
td.Settings.StopIfGoingOnBatteries = false;
td.Settings.IdleSettings.StopOnIdleEnd = false;
td.Settings.DeleteExpiredTaskAfter = TimeSpan.FromSeconds(40);

TaskFolder testFolder = null;

foreach (TaskFolder taskFolder in tf.SubFolders)
{
if (taskFolder.Name.Equals("TEST", StringComparison.OrdinalIgnoreCase))
{
testFolder = taskFolder;
}
}

if (testFolder == null)
testFolder = tf.CreateFolder("TEST");

testFolder.RegisterTaskDefinition("Start", td, TaskCreation.CreateOrUpdate, null, null, TaskLogonType.InteractiveToken);
Console.ReadKey();
}
}
}
```
Comments: ** Comment from web user: everrr **

hi guys, i have met the same issue on my win10 entreprise.
the scenario is as below:
1: use local account to register a task 'task a' under root folder
2: use admin account to delete 'task a', then register a new 'task a' (with the same task name) under root folder.

the admin account could delete the task a without any issue, but get failed while trying to register task a again, the exception and error message are the same as the top of this thread. i am wondering whether it is a lib issue or come from win10? i have this doubt since this never happned on win7 or win8.

do we have a feasible solution to this yet? if not, I am going to try native API which I really don't want to :(