diff --git a/Netch/Interops/TUNInterop.cs b/Netch/Interops/TUNInterop.cs
index 376f1658..67c1e263 100644
--- a/Netch/Interops/TUNInterop.cs
+++ b/Netch/Interops/TUNInterop.cs
@@ -62,7 +62,7 @@ namespace Netch.Interops
         private static extern bool tun_free();
 
         [DllImport(tun2socks_bin, CallingConvention = CallingConvention.Cdecl)]
-        private static extern ulong tun_luid();
+        public static extern ulong tun_luid();
 
         [DllImport(tun2socks_bin, CallingConvention = CallingConvention.Cdecl)]
         private static extern ulong tun_getUP();
diff --git a/Netch/Models/TunAdapter.cs b/Netch/Models/TunAdapter.cs
index 1ae12158..d3007536 100644
--- a/Netch/Models/TunAdapter.cs
+++ b/Netch/Models/TunAdapter.cs
@@ -10,19 +10,16 @@ namespace Netch.Models
 {
     public class TunAdapter : IAdapter
     {
-        private const string ComponentIdWintun = "wintun";
-
         public TunAdapter()
         {
-            AdapterId = AdapterUtils.GetAdapterId(ComponentIdWintun) ?? throw new Exception("wintun adapter not found");
-            NetworkInterface = NetworkInterface.GetAllNetworkInterfaces().First(i => i.Id == AdapterId);
-            InterfaceIndex = NetworkInterface.GetIPProperties().GetIPv4Properties().Index;
+            InterfaceIndex = (int) NativeMethods.ConvertLuidToIndex(TUNInterop.tun_luid());
+            NetworkInterface = NetworkInterface.GetAllNetworkInterfaces().First(i => i.GetIPProperties().GetIPv4Properties().Index == InterfaceIndex);
             Gateway = IPAddress.Parse(Global.Settings.TUNTAP.Gateway);
 
             Logging.Info($"WinTUN 适配器：{NetworkInterface.Name} {NetworkInterface.Id} {NetworkInterface.Description}, index: {InterfaceIndex}");
         }
 
-        public string AdapterId { get; set; }
+        public string AdapterId => throw new NotImplementedException();
 
         public int InterfaceIndex { get; }
 
diff --git a/Netch/NativeMethods.cs b/Netch/NativeMethods.cs
index a437fa2d..9270db19 100644
--- a/Netch/NativeMethods.cs
+++ b/Netch/NativeMethods.cs
@@ -41,6 +41,9 @@ namespace Netch
         [DllImport("RouteHelper.bin", CallingConvention = CallingConvention.Cdecl, EntryPoint = "DeleteRoute")]
         public static extern bool DeleteRoute(int inet, string address, int cidr, string gateway, int index, int metric = 0);
 
+        [DllImport("RouteHelper.bin", CallingConvention = CallingConvention.Cdecl)]
+        public static extern ulong ConvertLuidToIndex(ulong luid);
+
         [DllImport("dnsapi", EntryPoint = "DnsFlushResolverCache")]
         public static extern uint FlushDNSResolverCache();
     }
diff --git a/Netch/Utils/AdapterUtils.cs b/Netch/Utils/AdapterUtils.cs
deleted file mode 100644
index 6fafcb90..00000000
--- a/Netch/Utils/AdapterUtils.cs
+++ /dev/null
@@ -1,48 +0,0 @@
-using System;
-using System.Linq;
-using Microsoft.Win32;
-
-namespace Netch.Utils
-{
-    public static class AdapterUtils
-    {
-        public const string NETWORK_KEY = @"SYSTEM\CurrentControlSet\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}";
-        public const string ADAPTER_KEY = @"SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}";
-
-        /// <summary>
-        ///     获取 TUN/TAP 适配器名称
-        /// </summary>
-        /// <param name="componentId">适配器 ID</param>
-        /// <returns>适配器名称</returns>
-        public static string GetName(string componentId)
-        {
-            return Registry.LocalMachine.OpenSubKey($"{NETWORK_KEY}\\{componentId}\\Connection")?.GetValue("Name")?.ToString() ?? "";
-        }
-
-        public static string? GetAdapterId(params string[] componentIds)
-        {
-            try
-            {
-                var adaptersRegistry = Registry.LocalMachine.OpenSubKey(ADAPTER_KEY)!;
-
-                foreach (var keyName in adaptersRegistry.GetSubKeyNames().Where(s => s is not ("Configuration" or "Properties")))
-                {
-                    var adapterRegistry = adaptersRegistry.OpenSubKey(keyName)!;
-                    var componentId = adapterRegistry.GetValue("ComponentId")?.ToString();
-                    if (componentId == null)
-                        continue;
-
-                    if (componentIds.Contains(componentId))
-                        return (string) (adapterRegistry.GetValue("NetCfgInstanceId") ??
-                                         throw new Exception("Tap adapter have no NetCfgInstanceId key"));
-                }
-            }
-            catch (Exception e)
-            {
-                Logging.Warning(e.ToString());
-            }
-
-            return null;
-        }
-    }
-}
\ No newline at end of file