diff --git a/source/ubinstall-gtk-components.c b/source/ubinstall-gtk-components.c
index d3c13cc..ee5bc3f 100644
--- a/source/ubinstall-gtk-components.c
+++ b/source/ubinstall-gtk-components.c
@@ -79,6 +79,7 @@ int yon_os_components_save(main_window *widgets){
     GList *list = gtk_container_get_children(GTK_CONTAINER(widgets->OSSoftwareListBox));
     GList *iter;
     int size;
+    int overall_num=0;
     config_str modules = NULL;
     for(iter = list;iter;iter=iter->next){
         os_row *row = g_object_get_data(iter->data,"kernel_row");
@@ -87,9 +88,12 @@ int yon_os_components_save(main_window *widgets){
         if (status){
             yon_char_parsed_add_or_create_if_exists(modules,&size,target);
         }
+        overall_num++;
     }
     g_list_free(list);
-    if (size){
+    if (size&&size==overall_num){
+        yon_config_register(modules_parameter,modules_parameter_command,"auto");
+    } else if (size){
         char *final = yon_char_parsed_to_string(modules,size,",");
         yon_config_register(modules_parameter,modules_parameter_command,final);
     } else {