diff --git a/clashN/clashN/Forms/MainForm.cs b/clashN/clashN/Forms/MainForm.cs
index 99374c5..3b60bfa 100644
--- a/clashN/clashN/Forms/MainForm.cs
+++ b/clashN/clashN/Forms/MainForm.cs
@@ -1018,10 +1018,7 @@ namespace clashN.Forms
                     menuExit_Click(null, null);
                 }
             };
-            Task.Run(() =>
-            {
-                (new UpdateHandle()).CheckUpdateGuiN(config, _updateUI);
-            });
+            (new UpdateHandle()).CheckUpdateGuiN(config, _updateUI);
         }
 
         private void tsbCheckUpdateCore_Click(object sender, EventArgs e)
@@ -1054,10 +1051,7 @@ namespace clashN.Forms
                     AppendText(false, ResUI.MsgUpdateCoreCoreSuccessfully);
                 }
             };
-            Task.Run(() =>
-            {
-                (new UpdateHandle()).CheckUpdateCore(type, config, _updateUI);
-            });
+            (new UpdateHandle()).CheckUpdateCore(type, config, _updateUI);
 
         }
 
diff --git a/clashN/clashN/Global.cs b/clashN/clashN/Global.cs
index dacc8a1..54aa921 100644
--- a/clashN/clashN/Global.cs
+++ b/clashN/clashN/Global.cs
@@ -12,6 +12,7 @@ namespace clashN
         public const string NUrl = @"https://github.com/2dust/clashN/releases";
         public const string clashCoreUrl = "https://github.com/Dreamacro/clash/releases";
         public const string clashMetaCoreUrl = "https://github.com/MetaCubeX/Clash.Meta/releases";
+        public const string geoUrl = "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/{0}.dat";
 
         /// <summary>
         /// SpeedTestUrl
diff --git a/clashN/clashN/Handler/LazyConfig.cs b/clashN/clashN/Handler/LazyConfig.cs
index c69df29..e7542e4 100644
--- a/clashN/clashN/Handler/LazyConfig.cs
+++ b/clashN/clashN/Handler/LazyConfig.cs
@@ -58,12 +58,24 @@ namespace clashN.Handler
         {
             coreInfos = new List<CoreInfo>();
 
+            coreInfos.Add(new CoreInfo
+            {
+                coreType = ECoreType.clashN,
+                coreUrl = Global.NUrl,
+                coreLatestUrl = Global.NUrl + "/latest",
+                coreDownloadUrl32 = Global.NUrl + "/download/{0}/clashN-32.zip",
+                coreDownloadUrl64 = Global.NUrl + "/download/{0}/clashN.zip",
+            });
+
             coreInfos.Add(new CoreInfo
             {
                 coreType = ECoreType.clash,
                 coreExes = new List<string> { "clash-windows-amd64-v3", "clash-windows-amd64", "clash-windows-386", "clash" },
                 arguments = "-f config.yaml",
                 coreUrl = Global.clashCoreUrl,
+                coreLatestUrl = Global.clashCoreUrl + "/latest",
+                coreDownloadUrl32 = Global.clashCoreUrl + "/download/{0}/clash-windows-386-{0}.zip",
+                coreDownloadUrl64 = Global.clashCoreUrl + "/download/{0}/clash-windows-amd64-{0}.zip",
                 match = "Clash"
             });
 
@@ -73,6 +85,9 @@ namespace clashN.Handler
                 coreExes = new List<string> { "Clash.Meta-windows-amd64v1", "Clash.Meta-windows-amd64", "Clash.Meta-windows-386", "Clash.Meta", "clash" },
                 arguments = "-f config.yaml",
                 coreUrl = Global.clashMetaCoreUrl,
+                coreLatestUrl = Global.clashMetaCoreUrl + "/latest",
+                coreDownloadUrl32 = Global.clashMetaCoreUrl + "/download/{0}/Clash.Meta-windows-386-{0}.zip",
+                coreDownloadUrl64 = Global.clashMetaCoreUrl + "/download/{0}/Clash.Meta-windows-amd64V1-{0}.zip",
                 match = "Clash Meta"
             });
 
diff --git a/clashN/clashN/Handler/UpdateHandle.cs b/clashN/clashN/Handler/UpdateHandle.cs
index 9c71159..dbf7d86 100644
--- a/clashN/clashN/Handler/UpdateHandle.cs
+++ b/clashN/clashN/Handler/UpdateHandle.cs
@@ -33,16 +33,6 @@ namespace clashN.Handler
             }
         }
 
-        private readonly string nLatestUrl = Global.NUrl + "/latest";
-        private const string nUrl = Global.NUrl + "/download/{0}/clashN.zip";
-        private readonly string clashCoreLatestUrl = Global.clashCoreUrl + "/latest";
-        private const string clashCoreUrl32 = Global.clashCoreUrl + "/download/{0}/clash-windows-386-{0}.zip";
-        private const string clashCoreUrl64 = Global.clashCoreUrl + "/download/{0}/clash-windows-amd64-{0}.zip";
-        private readonly string clashMetaCoreLatestUrl = Global.clashMetaCoreUrl + "/latest";
-        private const string clashMetaCoreUrl32 = Global.clashMetaCoreUrl + "/download/{0}/Clash.Meta-windows-386-{0}.zip";
-        private const string clashMetaCoreUrl64 = Global.clashMetaCoreUrl + "/download/{0}/Clash.Meta-windows-amd64V1-{0}.zip";
-        private const string geoUrl = "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/{0}.dat";
-
         public void CheckUpdateGuiN(Config config, Action<bool, string> update)
         {
             _config = config;
@@ -242,7 +232,7 @@ namespace clashN.Handler
         {
             _config = config;
             _updateFunc = update;
-            var url = string.Format(geoUrl, geoName);
+            var url = string.Format(Global.geoUrl, geoName);
 
             DownloadHandle downloadHandle = null;
             if (downloadHandle == null)
@@ -294,23 +284,8 @@ namespace clashN.Handler
         {
             try
             {
-                string url;
-                if (type == ECoreType.clash)
-                {
-                    url = clashCoreLatestUrl;
-                }
-                else if (type == ECoreType.clash_meta)
-                {
-                    url = clashMetaCoreLatestUrl;
-                }
-                else if (type == ECoreType.clashN)
-                {
-                    url = nLatestUrl;
-                }
-                else
-                {
-                    throw new ArgumentException("Type");
-                }
+                var coreInfo = LazyConfig.Instance.GetCoreInfo(type);
+                string url = coreInfo.coreLatestUrl;             
 
                 var result = await (new DownloadHandle()).UrlRedirectAsync(url, true);
                 if (!Utils.IsNullOrEmpty(result))
@@ -381,7 +356,8 @@ namespace clashN.Handler
             try
             {
                 string version = redirectUrl.Substring(redirectUrl.LastIndexOf("/", StringComparison.Ordinal) + 1);
-
+                var coreInfo = LazyConfig.Instance.GetCoreInfo(type);
+                
                 string curVersion;
                 string message;
                 string url;
@@ -391,11 +367,11 @@ namespace clashN.Handler
                     message = string.Format(ResUI.IsLatestCore, curVersion);
                     if (Environment.Is64BitProcess)
                     {
-                        url = string.Format(clashCoreUrl64, version);
+                        url = string.Format(coreInfo.coreDownloadUrl64, version);
                     }
                     else
                     {
-                        url = string.Format(clashCoreUrl32, version);
+                        url = string.Format(coreInfo.coreDownloadUrl32, version);
                     }
                 }
                 else if (type == ECoreType.clash_meta)
@@ -404,18 +380,18 @@ namespace clashN.Handler
                     message = string.Format(ResUI.IsLatestCore, curVersion);
                     if (Environment.Is64BitProcess)
                     {
-                        url = string.Format(clashMetaCoreUrl64, version);
+                        url = string.Format(coreInfo.coreDownloadUrl64, version);
                     }
                     else
                     {
-                        url = string.Format(clashMetaCoreUrl32, version);
+                        url = string.Format(coreInfo.coreDownloadUrl32, version);
                     }
                 }
                 else if (type == ECoreType.clashN)
                 {
                     curVersion = FileVersionInfo.GetVersionInfo(Utils.GetExePath()).FileVersion.ToString();
                     message = string.Format(ResUI.IsLatestN, curVersion);
-                    url = string.Format(nUrl, version);
+                    url = string.Format(coreInfo.coreDownloadUrl64, version);
                 }
                 else
                 {
diff --git a/clashN/clashN/Mode/CoreInfo.cs b/clashN/clashN/Mode/CoreInfo.cs
index ab2ec11..14887ec 100644
--- a/clashN/clashN/Mode/CoreInfo.cs
+++ b/clashN/clashN/Mode/CoreInfo.cs
@@ -14,6 +14,12 @@ namespace clashN.Mode
 
         public string coreUrl { get; set; }
 
+        public string coreLatestUrl { get; set; }
+
+        public string coreDownloadUrl32 { get; set; }
+
+        public string coreDownloadUrl64 { get; set; }
+
         public string match { get; set; }
     }
 }