diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 4d8a823..37b5bf7 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -61,6 +61,7 @@ namespace GeekDesk
         /// </summary>
         private void LoadData()
         {
+            GC.KeepAlive(appData); // 持活
             this.DataContext = appData;
             if (appData.MenuList.Count == 0)
             {