diff --git a/v2rayN/v2rayN/Handler/ConfigHandler.cs b/v2rayN/v2rayN/Handler/ConfigHandler.cs
index 4844c1f3..131bd9ae 100644
--- a/v2rayN/v2rayN/Handler/ConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/ConfigHandler.cs
@@ -835,7 +835,6 @@ namespace v2rayN.Handler
                 case EServerColName.remarks:
                 case EServerColName.address:
                 case EServerColName.port:
-                case EServerColName.security:
                 case EServerColName.network:
                 case EServerColName.streamSecurity:
                     propertyName = name.ToString();
diff --git a/v2rayN/v2rayN/Mode/EServerColName.cs b/v2rayN/v2rayN/Mode/EServerColName.cs
index be49c2cb..0323df30 100644
--- a/v2rayN/v2rayN/Mode/EServerColName.cs
+++ b/v2rayN/v2rayN/Mode/EServerColName.cs
@@ -7,7 +7,6 @@
         remarks,
         address,
         port,
-        security,
         network,
         streamSecurity,
         subRemarks,
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml b/v2rayN/v2rayN/Views/MainWindow.xaml
index a37084e8..71e3eb72 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml
@@ -688,11 +688,6 @@
                                 Binding="{Binding port}"
                                 ExName="port"
                                 Header="{x:Static resx:ResUI.LvPort}" />
-                            <base:MyDGTextColumn
-                                Width="100"
-                                Binding="{Binding security}"
-                                ExName="security"
-                                Header="{x:Static resx:ResUI.LvEncryptionMethod}" />
                             <base:MyDGTextColumn
                                 Width="100"
                                 Binding="{Binding network}"
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml.cs b/v2rayN/v2rayN/Views/MainWindow.xaml.cs
index 3ba6feb1..503e9bc2 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml.cs
@@ -478,12 +478,11 @@ namespace v2rayN.Views
             }
 
             var lvColumnItem = _config.uiItem.mainColumnItem.OrderBy(t => t.Index).ToList();
-            for (int i = 0; i < lvColumnItem.Count; i++)
+            var displayIndex = 0;
+            foreach(var item in lvColumnItem)
             {
-                var item = lvColumnItem[i];
-                for (int k = 0; k < lstProfiles.Columns.Count; k++)
-                {
-                    var item2 = (MyDGTextColumn)lstProfiles.Columns[k];
+                foreach (MyDGTextColumn item2 in lstProfiles.Columns) 
+                { 
                     if (item2.ExName == item.Name)
                     {
                         if (item.Width < 0)
@@ -493,7 +492,7 @@ namespace v2rayN.Views
                         else
                         {
                             item2.Width = item.Width;
-                            item2.DisplayIndex = i;
+                            item2.DisplayIndex = displayIndex++;
                         }
                     }
                 }