diff --git a/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java b/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java
index ea4a2fd29e6..c97d5c9de51 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java
@@ -36,6 +36,7 @@ import com.android.settings.R;
 import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.TimeUnit;
+import android.view.WindowManager;
 
 public class StorageWizardFormatProgress extends StorageWizardBase {
     private static final String TAG = "StorageWizardFormatProgress";
@@ -54,6 +55,16 @@ public class StorageWizardFormatProgress extends StorageWizardBase {
             return;
         }
         setContentView(R.layout.storage_wizard_progress);
+
+        // hide the navigation bar for this activity only. So that user can not press back button accidentally.
+        View decorView = getWindow().getDecorView();
+        int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
+        decorView.setSystemUiVisibility(uiOptions);
+
+        //disable touch in activity so user can not make the hidden navigation bar visible.
+        getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
+                     WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
+
         setKeepScreenOn(true);
 
         mFormatPrivate = getIntent().getBooleanExtra(EXTRA_FORMAT_PRIVATE, false);
diff --git a/src/com/android/settings/deviceinfo/StorageWizardMigrateProgress.java b/src/com/android/settings/deviceinfo/StorageWizardMigrateProgress.java
index 7e042c1f395..a4b29afb15e 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardMigrateProgress.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardMigrateProgress.java
@@ -31,6 +31,8 @@ import android.widget.Toast;
 
 import com.android.settings.R;
 
+import android.view.WindowManager;
+
 public class StorageWizardMigrateProgress extends StorageWizardBase {
     private static final String TAG = "StorageWizardMigrateProgress";
 
@@ -46,7 +48,16 @@ public class StorageWizardMigrateProgress extends StorageWizardBase {
             return;
         }
         setContentView(R.layout.storage_wizard_progress);
+        
+        // hide the navigation bar for this activity only. So that user can not press back button accidentally.
+        View decorView = getWindow().getDecorView();    
+        int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
+        decorView.setSystemUiVisibility(uiOptions);
 
+        //disable touch in activity so user can not make the hidden navigation bar visible.
+        getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
+                     WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);         
+      
         mMoveId = getIntent().getIntExtra(EXTRA_MOVE_ID, -1);
 
         setIcon(R.drawable.ic_swap_horiz);