Examples for

ExecutingOnANewThread.cs

private void ExecutingOnANewThread()
{
  //both tasks defined bellow will be executed on a new background thread
  var task = new Task(() => { }, TaskCreationOptions.LongRunning);
  task.Start(TaskScheduler.Default);

  //or
  var task2 = Task.Factory.StartNew(() => { }, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
}

InstantiateAndStart.cs

        private void InstantiateAndStart()
        {
            var task = new Task(() => { });
            task.Start(); //will use TaskScheduler.Current to schedule the task for execution
        }

UsingTaskRun.cs

        private void UsingTaskRun()
        {
            Task.Run(() => { });//will use TaskScheduler.Default to schedule the task for execution
        }

UsingTheTaskFactory.cs

        private void UsingTheTaskFactory()
        {
            Task.Factory.StartNew(() => { }); //will use TaskScheduler.Current to schedule the task for execution
        }