diff --git a/Samples/BackgroundTask/cpp/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cpp b/Samples/BackgroundTask/cpp/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cpp
index fd05292e55..89443b52ea 100644
--- a/Samples/BackgroundTask/cpp/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cpp
+++ b/Samples/BackgroundTask/cpp/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cpp
@@ -51,11 +51,11 @@ void ApplicationTriggerTask::OnNavigatedTo(NavigationEventArgs^ e)
         {
             BackgroundTaskSample::UpdateBackgroundTaskRegistrationStatus(task->Name, true);
             AttachProgressAndCompletedHandlers(task);
+            trigger = ref new ApplicationTrigger();
             break;
         }
     }
 
-    trigger = ref new ApplicationTrigger();
     UpdateUI();
 }
 
@@ -76,6 +76,7 @@ void ApplicationTriggerTask::AttachProgressAndCompletedHandlers(IBackgroundTaskR
 /// <param name="e"></param>
 void ApplicationTriggerTask::RegisterBackgroundTask(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
 {
+    trigger = ref new ApplicationTrigger();
     auto task = BackgroundTaskSample::RegisterBackgroundTask(SampleBackgroundTaskEntryPoint,
                                                              ApplicationTriggerTaskName,
                                                              trigger,
@@ -93,6 +94,7 @@ void ApplicationTriggerTask::UnregisterBackgroundTask(Platform::Object^ sender,
 {
     BackgroundTaskSample::UnregisterBackgroundTasks(ApplicationTriggerTaskName);
     BackgroundTaskSample::ApplicationTriggerTaskResult = "";
+    trigger = nullptr;
     UpdateUI();
 }
 
@@ -153,7 +155,7 @@ void ApplicationTriggerTask::UpdateUI()
     {
         RegisterButton->IsEnabled = !BackgroundTaskSample::ApplicationTriggerTaskRegistered;
         UnregisterButton->IsEnabled = BackgroundTaskSample::ApplicationTriggerTaskRegistered;
-        SignalButton->IsEnabled = BackgroundTaskSample::ApplicationTriggerTaskRegistered & (trigger != nullptr);
+        SignalButton->IsEnabled = BackgroundTaskSample::ApplicationTriggerTaskRegistered && (trigger != nullptr);
         Progress->Text = BackgroundTaskSample::ApplicationTriggerTaskProgress;
         Result->Text = BackgroundTaskSample::ApplicationTriggerTaskResult;
         Status->Text = BackgroundTaskSample::GetBackgroundTaskStatus(ApplicationTriggerTaskName);
diff --git a/Samples/BackgroundTask/cs/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cs b/Samples/BackgroundTask/cs/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cs
index c57f1ee6b0..e85b17faf3 100644
--- a/Samples/BackgroundTask/cs/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cs
+++ b/Samples/BackgroundTask/cs/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.cs
@@ -52,11 +52,11 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
                 {
                     AttachProgressAndCompletedHandlers(task.Value);
                     BackgroundTaskSample.UpdateBackgroundTaskRegistrationStatus(BackgroundTaskSample.ApplicationTriggerTaskName, true);
+                    trigger = new ApplicationTrigger();
                     break;
                 }
             }
 
-            trigger = new ApplicationTrigger();
             UpdateUI();
         }
 
@@ -67,6 +67,7 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
         /// <param name="e"></param>
         private void RegisterBackgroundTask(object sender, RoutedEventArgs e)
         {
+            trigger = new ApplicationTrigger();
             var task = BackgroundTaskSample.RegisterBackgroundTask(BackgroundTaskSample.SampleBackgroundTaskEntryPoint,
                                                                    BackgroundTaskSample.ApplicationTriggerTaskName,
                                                                    trigger,
@@ -84,6 +85,7 @@ private void UnregisterBackgroundTask(object sender, RoutedEventArgs e)
         {
             BackgroundTaskSample.UnregisterBackgroundTasks(BackgroundTaskSample.ApplicationTriggerTaskName);
             BackgroundTaskSample.ApplicationTriggerTaskResult = "";
+            trigger = null;
             UpdateUI();
         }
 
@@ -149,7 +151,7 @@ private async void UpdateUI()
             {
                 RegisterButton.IsEnabled = !BackgroundTaskSample.ApplicationTriggerTaskRegistered;
                 UnregisterButton.IsEnabled = BackgroundTaskSample.ApplicationTriggerTaskRegistered;
-                SignalButton.IsEnabled = BackgroundTaskSample.ApplicationTriggerTaskRegistered & (trigger != null);
+                SignalButton.IsEnabled = BackgroundTaskSample.ApplicationTriggerTaskRegistered && (trigger != null);
                 Progress.Text = BackgroundTaskSample.ApplicationTriggerTaskProgress;
                 Result.Text = BackgroundTaskSample.ApplicationTriggerTaskResult;
                 Status.Text = BackgroundTaskSample.GetBackgroundTaskStatus(BackgroundTaskSample.ApplicationTriggerTaskName);
diff --git a/Samples/BackgroundTask/shared/Scenario4_TimeTriggeredTask.xaml b/Samples/BackgroundTask/shared/Scenario4_TimeTriggeredTask.xaml
index 063d23aeea..42c7649afe 100644
--- a/Samples/BackgroundTask/shared/Scenario4_TimeTriggeredTask.xaml
+++ b/Samples/BackgroundTask/shared/Scenario4_TimeTriggeredTask.xaml
@@ -24,9 +24,9 @@
                 <StackPanel>
                     <TextBlock Text="Description:" Style="{StaticResource SampleHeaderTextStyle}"/>
                     <TextBlock Style="{StaticResource ScenarioDescriptionTextStyle}" TextWrapping="Wrap">
-                        Registers a background task for a time trigger event and adds the
-                        application to the lock screen. The background task runs every 15 mins
-                        provided the app is on the lock screen.
+                        Registers a background task for a time trigger event and requests
+                        background access. The background task runs every 15 mins
+                        provided the app has background access.
                     </TextBlock>
                     <StackPanel HorizontalAlignment="Left" VerticalAlignment="Top" Orientation="Horizontal" Margin="0,10,0,10">
                         <Button x:Name="RegisterButton" Content="Register" Click="RegisterBackgroundTask" Margin="0,0,10,0"/>
diff --git a/Samples/BackgroundTask/vb/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.vb b/Samples/BackgroundTask/vb/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.vb
index 85de5284a1..4a14a6b051 100644
--- a/Samples/BackgroundTask/vb/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.vb
+++ b/Samples/BackgroundTask/vb/BackgroundTask/Scenario5_ApplicationTriggerTask.xaml.vb
@@ -43,11 +43,11 @@ Namespace Global.SDKTemplate
                 If task.Value.Name = BackgroundTaskSample.ApplicationTriggerTaskName Then
                     AttachProgressAndCompletedHandlers(task.Value)
                     BackgroundTaskSample.UpdateBackgroundTaskRegistrationStatus(BackgroundTaskSample.ApplicationTriggerTaskName, True)
+                    trigger = New ApplicationTrigger()
                     Exit For
                 End If
             Next
 
-            trigger = New ApplicationTrigger()
             UpdateUI()
         End Sub
 
@@ -57,6 +57,7 @@ Namespace Global.SDKTemplate
         ''' <param name="sender"></param>
         ''' <param name="e"></param>
         Private Sub RegisterBackgroundTask(sender As Object, e As RoutedEventArgs)
+            trigger = New ApplicationTrigger()
             Dim task = BackgroundTaskSample.RegisterBackgroundTask(BackgroundTaskSample.SampleBackgroundTaskEntryPoint, BackgroundTaskSample.ApplicationTriggerTaskName, trigger, Nothing)
             AttachProgressAndCompletedHandlers(task)
             UpdateUI()
@@ -70,6 +71,7 @@ Namespace Global.SDKTemplate
         Private Sub UnregisterBackgroundTask(sender As Object, e As RoutedEventArgs)
             BackgroundTaskSample.UnregisterBackgroundTasks(BackgroundTaskSample.ApplicationTriggerTaskName)
             BackgroundTaskSample.ApplicationTriggerTaskResult = ""
+            trigger = Nothing
             UpdateUI()
         End Sub