diff --git a/source/ubinstall-gtk.c b/source/ubinstall-gtk.c
index 1a4451c..b9eeaeb 100644
--- a/source/ubinstall-gtk.c
+++ b/source/ubinstall-gtk.c
@@ -329,31 +329,39 @@ void yon_interface_update(main_window *widgets){
     char *system_locale = config(locale_parameter);
     if (!yon_char_is_empty(system_locale)){
         char *chosen_langs = "";
-    for_iter(widgets->LanguagesList,&iter){
-        char *cur=NULL, *render = NULL;
-        gtk_tree_model_get(GTK_TREE_MODEL(widgets->LanguagesList),&iter,1,&render,2,&cur,-1);
-        if (strstr(system_locale,cur)){
-            gtk_list_store_set((widgets->LanguagesList),&iter,0,1,-1);
-            chosen_langs = yon_char_unite(chosen_langs,!yon_char_is_empty(chosen_langs)?";":"",render,NULL);
+        for_iter(widgets->LanguagesList,&iter){
+            char *cur=NULL, *render = NULL;
+            gtk_tree_model_get(GTK_TREE_MODEL(widgets->LanguagesList),&iter,1,&render,2,&cur,-1);
+            if (strstr(system_locale,cur)){
+                gtk_list_store_set((widgets->LanguagesList),&iter,0,1,-1);
+                chosen_langs = yon_char_unite(chosen_langs,!yon_char_is_empty(chosen_langs)?";":"",render,NULL);
+            } else {
+                gtk_list_store_set((widgets->LanguagesList),&iter,0,0,-1);
+            }
+        }
+        if (!yon_char_is_empty(chosen_langs)){
+            gtk_entry_set_text(GTK_ENTRY(widgets->AvailableLanguagesEntry),chosen_langs);
+            gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widgets->LanguagesSensitiveCheck),1);
+            free(chosen_langs);
         } else {
-            gtk_list_store_set((widgets->LanguagesList),&iter,0,0,-1);
+            gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widgets->LanguagesSensitiveCheck),0);
+            gtk_entry_set_text(GTK_ENTRY(widgets->AvailableLanguagesEntry),"");
         }
-    }
-    if (!yon_char_is_empty(chosen_langs)){
-        gtk_entry_set_text(GTK_ENTRY(widgets->AvailableLanguagesEntry),chosen_langs);
-        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widgets->LanguagesSensitiveCheck),1);
-        free(chosen_langs);
-    } else {
-        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widgets->LanguagesSensitiveCheck),0);
-        gtk_entry_set_text(GTK_ENTRY(widgets->AvailableLanguagesEntry),"");
-    }
     // gtk_tree_model_filter_refilter(GTK_TREE_MODEL_FILTER(widgets->LanguagesFilter));
     } else {
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widgets->LanguagesSensitiveCheck),0);
         gtk_entry_set_text(GTK_ENTRY(widgets->AvailableLanguagesEntry),"");
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widgets->LanguagesSensitiveCheck),0);
+        int langsize;
+        config_str lang = default_langs(&langsize);
         for_iter(widgets->LanguagesList,&iter){
-                gtk_list_store_set((widgets->LanguagesList),&iter,0,0,-1);
+            char *cur;
+            gtk_tree_model_get(GTK_TREE_MODEL(widgets->LanguagesList),&iter,2,&cur,-1);
+                if (lang&&yon_char_parsed_check_exist(lang,langsize,cur)>-1){
+                    gtk_list_store_set(widgets->LanguagesList,&iter,0,1,-1);
+                } else {
+                    gtk_list_store_set(widgets->LanguagesList,&iter,0,0,-1);
+                }
         }
         // gtk_tree_model_filter_refilter(GTK_TREE_MODEL_FILTER(widgets->LanguagesFilter));
     }
@@ -748,7 +756,7 @@ void on_language_window_accept(GtkWidget *,dictionary *dict){
         gtk_entry_set_text(GTK_ENTRY(widgets->AvailableLanguagesEntry),"");
         GtkTreeIter iter;
         int size;
-        config_str lang_parsed = yon_char_parsed_new(&size,"en_US.UTF-8","ru_RU.UTF-8",NULL);
+        config_str lang_parsed = default_langs(&size);
 
         char *final = "";
         for_iter(widgets->LanguagesList,&iter){
@@ -828,6 +836,26 @@ void on_language_clicked(GtkWidget *, main_window *widgets){
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(window->DefaultCheck),1);
     }
 
+    int size;
+    int found=0;
+    int statusfound=0;
+    config_str langs = default_langs(&size);
+    GtkTreeIter iter;
+    for_iter(widgets->LanguagesList,&iter){
+        char *cur;
+        int status;
+        gtk_tree_model_get(GTK_TREE_MODEL(widgets->LanguagesList),&iter,0,&status,2,&cur,-1);
+        if (status){
+            statusfound++;
+            if (yon_char_parsed_check_exist(langs,size,cur)>-1) 
+                found++;
+        }
+    }
+    if ((found==size)&&statusfound==size){
+        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(window->DefaultCheck),1);
+    }
+    printf("%d  ==  %d  ==  %d\n",found,size,statusfound);
+
     dictionary *dict=NULL;
     yon_dictionary_add_or_create_if_exists_with_data(dict,"widgets",widgets);
     yon_dictionary_add_or_create_if_exists_with_data(dict,"window",window);
@@ -2467,6 +2495,9 @@ main_window *yon_main_window_complete(){
     gtk_image_set_from_pixbuf(GTK_IMAGE(widgets->KeyboardImage),gdk_pixbuf_scale_simple(widgets->keyboard_original,600,400,GDK_INTERP_BILINEAR));
     gtk_image_set_from_pixbuf(GTK_IMAGE(widgets->SlidesImage),gdk_pixbuf_scale_simple(widgets->slides_original[0],600,400,GDK_INTERP_BILINEAR));
 
+    int langsize;
+    config_str lang = default_langs(&langsize);
+
     GtkTreeIter iter;
     gtk_list_store_clear(widgets->LanguagesList);
     parsed = yon_file_open(languages_path,&size);
@@ -2481,6 +2512,8 @@ main_window *yon_main_window_complete(){
         yon_char_parsed_free(cur,cur_size);
     }
     yon_char_parsed_free(parsed,size);
+    if (lang)
+        yon_char_parsed_free(lang,langsize);
 
     parsed = yon_dir_get_contents(zone_path,&size);
     for (int i=0;i<size;i++){
diff --git a/source/ubinstall-gtk.h b/source/ubinstall-gtk.h
index 372dda6..7689db5 100755
--- a/source/ubinstall-gtk.h
+++ b/source/ubinstall-gtk.h
@@ -147,6 +147,8 @@ NULL
 
 #define ubconfig_file_create(target) yon_char_unite("ubconfig --target \"",target,"\" create",NULL)
 
+#define default_langs(size) yon_char_parsed_new(size,"en_US.UTF-8","ru_RU.UTF-8",NULL);
+
 typedef char* string; 
 string version_application;