diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 900c966..b589560 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -387,6 +387,11 @@
                         tableExists(mOpenHelper.getReadableDatabase(), Favorites.BACKUP_TABLE_NAME);
                 return null;
             }
+            case LauncherSettings.Settings.METHOD_RESTORE_BACKUP_TABLE: {
+                RestoreDbTask.restoreIfPossible(
+                        getContext(), mOpenHelper, new BackupManager(getContext()));
+                return null;
+            }
         }
         return null;
     }
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index ec307db..4c5c61c 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -300,6 +300,8 @@
 
         public static final String METHOD_REFRESH_BACKUP_TABLE = "refresh_backup_table";
 
+        public static final String METHOD_RESTORE_BACKUP_TABLE = "restore_backup_table";
+
         public static final String EXTRA_VALUE = "value";
 
         public static Bundle call(ContentResolver cr, String method) {
diff --git a/src/com/android/launcher3/model/GridBackupTable.java b/src/com/android/launcher3/model/GridBackupTable.java
index 11d4edd..fc9948e 100644
--- a/src/com/android/launcher3/model/GridBackupTable.java
+++ b/src/com/android/launcher3/model/GridBackupTable.java
@@ -27,6 +27,8 @@
 import android.os.Process;
 import android.util.Log;
 
+import androidx.annotation.IntDef;
+
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.LauncherSettings.Settings;
 import com.android.launcher3.pm.UserCache;
@@ -45,6 +47,19 @@
     private static final String KEY_GRID_Y_SIZE = Favorites.SPANY;
     private static final String KEY_DB_VERSION = Favorites.RANK;
 
+    public static final int OPTION_REQUIRES_SANITIZATION = 1;
+
+    /** STATE_NOT_FOUND indicates backup doesn't exist in the db. */
+    private static final int STATE_NOT_FOUND = 0;
+    /**
+     *  STATE_RAW indicates the backup has not yet been sanitized. This implies it might still
+     *  posses app info that doesn't exist in the workspace and needed to be sanitized before
+     *  put into use.
+     */
+    private static final int STATE_RAW = 1;
+    /** STATE_SANITIZED indicates the backup has already been sanitized, thus can be used as-is. */
+    private static final int STATE_SANITIZED = 2;
+
     private final Context mContext;
     private final SQLiteDatabase mDb;
 
@@ -56,6 +71,9 @@
     private int mRestoredGridX;
     private int mRestoredGridY;
 
+    @IntDef({STATE_NOT_FOUND, STATE_RAW, STATE_SANITIZED})
+    private @interface BackupState { }
+
     public GridBackupTable(Context context, SQLiteDatabase db,
             int hotseatSize, int gridX, int gridY) {
         mContext = context;
@@ -66,6 +84,10 @@
         mOldGridY = gridY;
     }
 
+    /**
+     * Create a backup from current workspace layout if one isn't created already (Note backup
+     * created this way is always sanitized). Otherwise restore from the backup instead.
+     */
     public boolean backupOrRestoreAsNeeded() {
         // Check if backup table exists
         if (!tableExists(mDb, BACKUP_TABLE_NAME)) {
@@ -74,16 +96,16 @@
                 // No need to copy if empty DB was created.
                 return false;
             }
-
-            copyTable(Favorites.TABLE_NAME, BACKUP_TABLE_NAME);
-            encodeDBProperties();
+            doBackup(UserCache.INSTANCE.get(mContext).getSerialNumberForUser(
+                    Process.myUserHandle()), 0);
             return false;
         }
-
-        if (!loadDbProperties()) {
+        if (loadDBProperties() != STATE_SANITIZED) {
             return false;
         }
-        copyTable(BACKUP_TABLE_NAME, Favorites.TABLE_NAME);
+        long userSerial = UserCache.INSTANCE.get(mContext).getSerialNumberForUser(
+                Process.myUserHandle());
+        copyTable(BACKUP_TABLE_NAME, Favorites.TABLE_NAME, userSerial);
         Log.d(TAG, "Backup table found");
         return true;
     }
@@ -93,43 +115,84 @@
         return mRestoredHotseatSize;
     }
 
-    private void copyTable(String from, String to) {
-        long userSerial = UserCache.INSTANCE.get(mContext).getSerialNumberForUser(
-                Process.myUserHandle());
+    /**
+     * Copy valid grid entries from one table to another.
+     */
+    private void copyTable(String from, String to, long userSerial) {
         dropTable(mDb, to);
         Favorites.addTableToDb(mDb, userSerial, false, to);
         mDb.execSQL("INSERT INTO " + to + " SELECT * FROM " + from + " where _id > " + ID_PROPERTY);
     }
 
-    private void encodeDBProperties() {
+    private void encodeDBProperties(int options) {
         ContentValues values = new ContentValues();
         values.put(Favorites._ID, ID_PROPERTY);
         values.put(KEY_DB_VERSION, mDb.getVersion());
         values.put(KEY_GRID_X_SIZE, mOldGridX);
         values.put(KEY_GRID_Y_SIZE, mOldGridY);
         values.put(KEY_HOTSEAT_SIZE, mOldHotseatSize);
+        values.put(Favorites.OPTIONS, options);
         mDb.insert(BACKUP_TABLE_NAME, null, values);
     }
 
-    private boolean loadDbProperties() {
+    /**
+     * Load DB properties from grid backup table.
+     */
+    public @BackupState int loadDBProperties() {
         try (Cursor c = mDb.query(BACKUP_TABLE_NAME, new String[] {
-                        KEY_DB_VERSION,     // 0
-                        KEY_GRID_X_SIZE,    // 1
-                        KEY_GRID_Y_SIZE,    // 2
-                        KEY_HOTSEAT_SIZE},  // 3
+                KEY_DB_VERSION,     // 0
+                KEY_GRID_X_SIZE,    // 1
+                KEY_GRID_Y_SIZE,    // 2
+                KEY_HOTSEAT_SIZE,   // 3
+                Favorites.OPTIONS}, // 4
                 "_id=" + ID_PROPERTY, null, null, null, null)) {
             if (!c.moveToNext()) {
                 Log.e(TAG, "Meta data not found in backup table");
-                return false;
+                return STATE_NOT_FOUND;
             }
-            if (mDb.getVersion() != c.getInt(0)) {
-                return false;
+            if (!validateDBVersion(mDb.getVersion(), c.getInt(0))) {
+                return STATE_NOT_FOUND;
             }
 
             mRestoredGridX = c.getInt(1);
             mRestoredGridY = c.getInt(2);
             mRestoredHotseatSize = c.getInt(3);
-            return true;
+            boolean isSanitized = (c.getInt(4) & OPTION_REQUIRES_SANITIZATION) == 0;
+            return isSanitized ? STATE_SANITIZED : STATE_RAW;
         }
     }
+
+    /**
+     * Restore workspace from raw backup if available.
+     */
+    public boolean restoreFromRawBackupIfAvailable(long oldProfileId) {
+        if (!tableExists(mDb, Favorites.BACKUP_TABLE_NAME)
+                || loadDBProperties() != STATE_RAW
+                || mOldHotseatSize != mRestoredHotseatSize
+                || mOldGridX != mRestoredGridX
+                || mOldGridY != mRestoredGridY) {
+            // skip restore if dimensions in backup table differs from current setup.
+            return false;
+        }
+        copyTable(Favorites.BACKUP_TABLE_NAME, Favorites.TABLE_NAME, oldProfileId);
+        Log.d(TAG, "Backup restored");
+        return true;
+    }
+
+    /**
+     * Performs a backup on the workspace layout.
+     */
+    public void doBackup(long profileId, int options) {
+        copyTable(Favorites.TABLE_NAME, Favorites.BACKUP_TABLE_NAME, profileId);
+        encodeDBProperties(options);
+    }
+
+    private static boolean validateDBVersion(int expected, int actual) {
+        if (expected != actual) {
+            Log.e(TAG, String.format("Launcher.db version mismatch, expecting %d but %d was found",
+                    expected, actual));
+            return false;
+        }
+        return true;
+    }
 }
diff --git a/src/com/android/launcher3/provider/RestoreDbTask.java b/src/com/android/launcher3/provider/RestoreDbTask.java
index 5037c9d..7ee30cc 100644
--- a/src/com/android/launcher3/provider/RestoreDbTask.java
+++ b/src/com/android/launcher3/provider/RestoreDbTask.java
@@ -32,12 +32,15 @@
 import androidx.annotation.NonNull;
 
 import com.android.launcher3.AppWidgetsRestoredReceiver;
+import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherAppWidgetInfo;
 import com.android.launcher3.LauncherProvider.DatabaseHelper;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.WorkspaceItemInfo;
 import com.android.launcher3.logging.FileLog;
+import com.android.launcher3.model.GridBackupTable;
 import com.android.launcher3.provider.LauncherDbUtils.SQLiteTransaction;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.LogConfig;
@@ -67,6 +70,7 @@
         SQLiteDatabase db = helper.getWritableDatabase();
         try (SQLiteTransaction t = new SQLiteTransaction(db)) {
             RestoreDbTask task = new RestoreDbTask();
+            task.backupWorkspace(context, db);
             task.sanitizeDB(helper, db, backupManager);
             task.restoreAppWidgetIdsIfExists(context);
             t.commit();
@@ -78,6 +82,45 @@
     }
 
     /**
+     * Restore the workspace if backup is available.
+     */
+    public static boolean restoreIfPossible(@NonNull Context context,
+            @NonNull DatabaseHelper helper, @NonNull BackupManager backupManager) {
+        final SQLiteDatabase db = helper.getWritableDatabase();
+        try (SQLiteTransaction t = new SQLiteTransaction(db)) {
+            RestoreDbTask task = new RestoreDbTask();
+            task.restoreWorkspace(context, db, helper, backupManager);
+            task.restoreAppWidgetIdsIfExists(context);
+            t.commit();
+            return true;
+        } catch (Exception e) {
+            FileLog.e(TAG, "Failed to restore db", e);
+            return false;
+        }
+    }
+
+    /**
+     * Backup the workspace so that if things go south in restore, we can recover these entries.
+     */
+    private void backupWorkspace(Context context, SQLiteDatabase db) throws Exception {
+        InvariantDeviceProfile idp = LauncherAppState.getIDP(context);
+        new GridBackupTable(context, db, idp.numHotseatIcons, idp.numColumns, idp.numRows)
+                .doBackup(getDefaultProfileId(db), GridBackupTable.OPTION_REQUIRES_SANITIZATION);
+    }
+
+    private void restoreWorkspace(@NonNull Context context, @NonNull SQLiteDatabase db,
+            @NonNull DatabaseHelper helper, @NonNull BackupManager backupManager)
+            throws Exception {
+        final InvariantDeviceProfile idp = LauncherAppState.getIDP(context);
+        GridBackupTable backupTable = new GridBackupTable(context, db,
+                idp.numHotseatIcons, idp.numColumns, idp.numRows);
+        if (backupTable.restoreFromRawBackupIfAvailable(getDefaultProfileId(db))) {
+            sanitizeDB(helper, db, backupManager);
+            LauncherAppState.getInstance(context).getModel().forceReload();
+        }
+    }
+
+    /**
      * Makes the following changes in the provider DB.
      *   1. Removes all entries belonging to any profiles that were not restored.
      *   2. Marks all entries as restored. The flags are updated during first load or as
@@ -126,15 +169,16 @@
         db.update(Favorites.TABLE_NAME, values, null, null);
 
         // Mark widgets with appropriate restore flag.
-        values.put(Favorites.RESTORED,  LauncherAppWidgetInfo.FLAG_ID_NOT_VALID |
-                LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY |
-                LauncherAppWidgetInfo.FLAG_UI_NOT_READY |
-                (keepAllIcons ? LauncherAppWidgetInfo.FLAG_RESTORE_STARTED : 0));
+        values.put(Favorites.RESTORED,  LauncherAppWidgetInfo.FLAG_ID_NOT_VALID
+                | LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY
+                | LauncherAppWidgetInfo.FLAG_UI_NOT_READY
+                | (keepAllIcons ? LauncherAppWidgetInfo.FLAG_RESTORE_STARTED : 0));
         db.update(Favorites.TABLE_NAME, values, "itemType = ?",
                 new String[]{Integer.toString(Favorites.ITEM_TYPE_APPWIDGET)});
 
-        // Migrate ids. To avoid any overlap, we initially move conflicting ids to a temp location.
-        // Using Long.MIN_VALUE since profile ids can not be negative, so there will be no overlap.
+        // Migrate ids. To avoid any overlap, we initially move conflicting ids to a temp
+        // location. Using Long.MIN_VALUE since profile ids can not be negative, so there will
+        // be no overlap.
         final long tempLocationOffset = Long.MIN_VALUE;
         SparseLongArray tempMigratedIds = new SparseLongArray(profileMapping.size());
         int numTempMigrations = 0;
@@ -192,10 +236,10 @@
     private LongSparseArray<Long> getManagedProfileIds(SQLiteDatabase db, long defaultProfileId) {
         LongSparseArray<Long> ids = new LongSparseArray<>();
         try (Cursor c = db.rawQuery("SELECT profileId from favorites WHERE profileId != ? "
-                + "GROUP BY profileId", new String[] {Long.toString(defaultProfileId)})){
-                while (c.moveToNext()) {
-                    ids.put(c.getLong(c.getColumnIndex(Favorites.PROFILE_ID)), null);
-                }
+                + "GROUP BY profileId", new String[] {Long.toString(defaultProfileId)})) {
+            while (c.moveToNext()) {
+                ids.put(c.getLong(c.getColumnIndex(Favorites.PROFILE_ID)), null);
+            }
         }
         return ids;
     }
@@ -216,7 +260,7 @@
      * Returns the profile id used in the favorites table of the provided db.
      */
     protected long getDefaultProfileId(SQLiteDatabase db) throws Exception {
-        try (Cursor c = db.rawQuery("PRAGMA table_info (favorites)", null)){
+        try (Cursor c = db.rawQuery("PRAGMA table_info (favorites)", null)) {
             int nameIndex = c.getColumnIndex(INFO_COLUMN_NAME);
             while (c.moveToNext()) {
                 if (Favorites.PROFILE_ID.equals(c.getString(nameIndex))) {