diff --git a/source/ubinstall-gtk-advanced.c b/source/ubinstall-gtk-advanced.c
index d383a4c..4d88e27 100644
--- a/source/ubinstall-gtk-advanced.c
+++ b/source/ubinstall-gtk-advanced.c
@@ -147,7 +147,7 @@ void yon_advanced_update(main_window *widgets){
         g_signal_connect(G_OBJECT(part->RemoveButton),"clicked",G_CALLBACK(on_advanced_part_remove),widgets);
         g_signal_connect(G_OBJECT(part->SystemSectionToggle),"clicked",G_CALLBACK(on_advanced_section_toggled),widgets);
         g_signal_connect(G_OBJECT(part->UserDataSectionToggle),"clicked",G_CALLBACK(on_advanced_section_toggled),widgets);
-        g_signal_connect(G_OBJECT(part->SizeCombo),"changed",G_CALLBACK(on_advanced_size_changed),widgets);
+        // g_signal_connect(G_OBJECT(part->SizeCombo),"changed",G_CALLBACK(on_advanced_size_changed),widgets);
         if (i==0){
             gtk_widget_set_sensitive(part->SystemSectionToggle,0);
             gtk_widget_set_sensitive(part->UserDataSectionToggle,0);
@@ -277,22 +277,24 @@ void on_install_advanced_partition_chosen(GtkCellRenderer*, gchar *path, main_wi
     gtk_tree_model_get_iter_from_string(model,&iter,path);
     int status;
     char *target_part, *device;
-    gtk_tree_model_get(model,&iter,0,&target_part,7,&status,9,&device,-1);
+            gulong part_size;
+    gtk_tree_model_get(model,&iter,0,&target_part,5,&part_size,7,&status,9,&device,-1);
     
     if (!status){
         if (chosen<2){
-            gtk_list_store_set(widgets->PartitionsList,&iter,7,!status,-1);
+            gtk_list_store_set(widgets->PartitionsList,&iter,7,1,-1);
             chosen++;
             advanced_section *section = yon_advanced_section_new();
             section->part_source = PART_SOURCE_PART;
             section->partition = target_part;
             section->device = NULL;
+            section->full_part_size = part_size;
             sections[sections_size]=section;
             sections_size++;
         }
     } else {
-        gtk_list_store_set(widgets->PartitionsList,&iter,7,!status,-1);
         yon_advanced_section_remove_by_name(target_part);
+        gtk_list_store_set(widgets->PartitionsList,&iter,7,0,-1);
     }
     yon_advanced_update(widgets);
 }
@@ -580,10 +582,14 @@ int yon_advanced_save(main_window *widgets){
             devices[1]=cur_section->device;
         }
     }
-    if (cur_section->size){
+    if (cur_section->size&&yon_size_long_convert_to_mod(cur_section->full_part_size,cur_section->size_letter)>cur_section->size){
+        
         char *size_str = yon_char_from_long(cur_section->size);
         char *sz_str = yon_char_append_c(size_str,cur_section->size_letter);
         part_size[0]=sz_str;
+    } else {
+        yon_ubl_status_box_spawn(GTK_CONTAINER(widgets->StatusBox),NOT_ENOUGH_SPACE_LABEL,5,BACKGROUND_IMAGE_FAIL_TYPE);
+        return 0;
     }
     if (!yon_char_is_empty(cur_section->part_label)){
         part_label[0]=cur_section->part_label;
diff --git a/source/ubinstall-gtk.h b/source/ubinstall-gtk.h
index 7d28e42..507ad0f 100755
--- a/source/ubinstall-gtk.h
+++ b/source/ubinstall-gtk.h
@@ -1097,6 +1097,7 @@ typedef struct
 	int sys_section;
 	int user_section;
 	gboolean format;
+	gulong full_part_size;
 	unsigned long size;
 	char size_letter;
 	char *part_label;
diff --git a/ubinstall-gtk-advanced-box.glade b/ubinstall-gtk-advanced-box.glade
index 21cd559..035138d 100644
--- a/ubinstall-gtk-advanced-box.glade
+++ b/ubinstall-gtk-advanced-box.glade
@@ -4,7 +4,8 @@
   <requires lib="gtk+" version="3.24"/>
   <!-- interface-css-provider-path ubinstall-gtk.css -->
   <object class="GtkAdjustment" id="adjustment1">
-    <property name="upper">100</property>
+    <property name="lower">1</property>
+    <property name="upper">9999999999999</property>
     <property name="step-increment">1</property>
     <property name="page-increment">10</property>
   </object>
diff --git a/ubinstall-gtk.glade b/ubinstall-gtk.glade
index 051edbd..974d0d3 100644
--- a/ubinstall-gtk.glade
+++ b/ubinstall-gtk.glade
@@ -9989,6 +9989,9 @@ separately into the selected partition.</property>
                                                   <object class="GtkTreeViewColumn">
                                                     <child>
                                                       <object class="GtkCellRendererToggle" id="AdvancedPartChosenCell"/>
+                                                      <attributes>
+                                                        <attribute name="active">7</attribute>
+                                                      </attributes>
                                                     </child>
                                                   </object>
                                                 </child>