diff --git a/src/com/android/settings/deviceinfo/StorageWizardBase.java b/src/com/android/settings/deviceinfo/StorageWizardBase.java
index 4787ac50856..40fc249f697 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardBase.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardBase.java
@@ -22,6 +22,7 @@ import static android.os.storage.VolumeInfo.EXTRA_VOLUME_ID;
 import static com.android.settings.deviceinfo.StorageSettings.TAG;
 
 import android.annotation.LayoutRes;
+import android.annotation.NonNull;
 import android.app.Activity;
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
@@ -145,7 +146,7 @@ public abstract class StorageWizardBase extends Activity {
         ((TextView) aux.requireViewById(R.id.storage_wizard_migrate_v2_checklist_media))
                 .setText(TextUtils.expandTemplate(
                         getText(R.string.storage_wizard_migrate_v2_checklist_media),
-                        mDisk.getShortDescription()));
+                        getDiskShortDescription()));
     }
 
     protected void setBackButtonText(int resId, CharSequence... args) {
@@ -228,6 +229,26 @@ public abstract class StorageWizardBase extends Activity {
         }
     }
 
+    protected @NonNull CharSequence getDiskDescription() {
+        if (mDisk != null) {
+            return mDisk.getDescription();
+        } else if (mVolume != null) {
+            return mVolume.getDescription();
+        } else {
+            return getText(R.string.unknown);
+        }
+    }
+
+    protected @NonNull CharSequence getDiskShortDescription() {
+        if (mDisk != null) {
+            return mDisk.getShortDescription();
+        } else if (mVolume != null) {
+            return mVolume.getDescription();
+        } else {
+            return getText(R.string.unknown);
+        }
+    }
+
     private final StorageEventListener mStorageListener = new StorageEventListener() {
         @Override
         public void onDiskDestroyed(DiskInfo disk) {
diff --git a/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java b/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java
index 8e3f8eff166..07119078a81 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardFormatProgress.java
@@ -57,8 +57,8 @@ public class StorageWizardFormatProgress extends StorageWizardBase {
 
         mFormatPrivate = getIntent().getBooleanExtra(EXTRA_FORMAT_PRIVATE, false);
 
-        setHeaderText(R.string.storage_wizard_format_progress_title, mDisk.getShortDescription());
-        setBodyText(R.string.storage_wizard_format_progress_body, mDisk.getDescription());
+        setHeaderText(R.string.storage_wizard_format_progress_title, getDiskShortDescription());
+        setBodyText(R.string.storage_wizard_format_progress_body, getDiskDescription());
 
         mTask = (PartitionTask) getLastNonConfigurationInstance();
         if (mTask == null) {
diff --git a/src/com/android/settings/deviceinfo/StorageWizardFormatSlow.java b/src/com/android/settings/deviceinfo/StorageWizardFormatSlow.java
index 9c80ff610c8..37df21709e2 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardFormatSlow.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardFormatSlow.java
@@ -39,10 +39,10 @@ public class StorageWizardFormatSlow extends StorageWizardBase {
 
         mFormatPrivate = getIntent().getBooleanExtra(EXTRA_FORMAT_PRIVATE, false);
 
-        setHeaderText(R.string.storage_wizard_slow_v2_title, mDisk.getShortDescription());
-        setBodyText(R.string.storage_wizard_slow_v2_body, mDisk.getDescription(),
-                mDisk.getShortDescription(), mDisk.getShortDescription(),
-                mDisk.getShortDescription());
+        setHeaderText(R.string.storage_wizard_slow_v2_title, getDiskShortDescription());
+        setBodyText(R.string.storage_wizard_slow_v2_body, getDiskDescription(),
+                getDiskShortDescription(), getDiskShortDescription(),
+                getDiskShortDescription());
 
         setBackButtonText(R.string.storage_wizard_slow_v2_start_over);
         setNextButtonText(R.string.storage_wizard_slow_v2_continue);
diff --git a/src/com/android/settings/deviceinfo/StorageWizardInit.java b/src/com/android/settings/deviceinfo/StorageWizardInit.java
index 2233cf9f0bd..0fc850b1390 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardInit.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardInit.java
@@ -45,7 +45,7 @@ public class StorageWizardInit extends StorageWizardBase {
         mIsPermittedToAdopt = UserManager.get(this).isAdminUser()
                 && !ActivityManager.isUserAMonkey();
 
-        setHeaderText(R.string.storage_wizard_init_v2_title, mDisk.getShortDescription());
+        setHeaderText(R.string.storage_wizard_init_v2_title, getDiskShortDescription());
 
         mExternal = requireViewById(R.id.storage_wizard_init_external);
         mInternal = requireViewById(R.id.storage_wizard_init_internal);
diff --git a/src/com/android/settings/deviceinfo/StorageWizardMigrateConfirm.java b/src/com/android/settings/deviceinfo/StorageWizardMigrateConfirm.java
index 755f09317c4..969a50ab634 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardMigrateConfirm.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardMigrateConfirm.java
@@ -59,7 +59,7 @@ public class StorageWizardMigrateConfirm extends StorageWizardBase {
         }
 
         setIcon(R.drawable.ic_swap_horiz);
-        setHeaderText(R.string.storage_wizard_migrate_v2_title, mDisk.getShortDescription());
+        setHeaderText(R.string.storage_wizard_migrate_v2_title, getDiskShortDescription());
         setBodyText(R.string.memory_calculating_size);
         setAuxChecklist();
 
@@ -67,7 +67,7 @@ public class StorageWizardMigrateConfirm extends StorageWizardBase {
             @Override
             public void onPostExecute(String size, String time) {
                 setBodyText(R.string.storage_wizard_migrate_v2_body,
-                        mDisk.getDescription(), size, time);
+                        getDiskDescription(), size, time);
             }
         };
 
diff --git a/src/com/android/settings/deviceinfo/StorageWizardReady.java b/src/com/android/settings/deviceinfo/StorageWizardReady.java
index c5c4ca22314..fdb8d8a4938 100644
--- a/src/com/android/settings/deviceinfo/StorageWizardReady.java
+++ b/src/com/android/settings/deviceinfo/StorageWizardReady.java
@@ -33,20 +33,20 @@ public class StorageWizardReady extends StorageWizardBase {
         }
         setContentView(R.layout.storage_wizard_generic);
 
-        setHeaderText(R.string.storage_wizard_ready_title, mDisk.getShortDescription());
+        setHeaderText(R.string.storage_wizard_ready_title, getDiskShortDescription());
 
         final VolumeInfo privateVol = findFirstVolume(VolumeInfo.TYPE_PRIVATE);
         if (privateVol != null) {
             if (getIntent().getBooleanExtra(EXTRA_MIGRATE_SKIP, false)) {
                 setBodyText(R.string.storage_wizard_ready_v2_internal_body,
-                        mDisk.getDescription());
+                        getDiskDescription());
             } else {
                 setBodyText(R.string.storage_wizard_ready_v2_internal_moved_body,
-                        mDisk.getDescription(), mDisk.getShortDescription());
+                        getDiskDescription(), getDiskShortDescription());
             }
         } else {
             setBodyText(R.string.storage_wizard_ready_v2_external_body,
-                    mDisk.getDescription());
+                    getDiskDescription());
         }
 
         setNextButtonText(R.string.done);