diff --git a/STranslate/View/MainWindow.xaml b/STranslate/View/MainWindow.xaml
index da0ed64..612c4fa 100644
--- a/STranslate/View/MainWindow.xaml
+++ b/STranslate/View/MainWindow.xaml
@@ -17,6 +17,7 @@
         ResizeMode="NoResize"
         Topmost="True"
         Deactivated="Window_Deactivated"
+        Closing="Mwin_Closing"
         WindowStyle="None"
         SizeToContent="Height"
         Width="400"
diff --git a/STranslate/View/MainWindow.xaml.cs b/STranslate/View/MainWindow.xaml.cs
index 379851e..a48f4ba 100644
--- a/STranslate/View/MainWindow.xaml.cs
+++ b/STranslate/View/MainWindow.xaml.cs
@@ -79,5 +79,10 @@ namespace STranslate.View
                 this.Hide();
             }
         }
+
+        private void Mwin_Closing(object sender, System.ComponentModel.CancelEventArgs e)
+        {
+            HotkeysHelper.UnRegisterHotKey();
+        }
     }
 }
\ No newline at end of file
diff --git a/STranslate/ViewModel/MainVM.cs b/STranslate/ViewModel/MainVM.cs
index 6de1dd6..5cda315 100644
--- a/STranslate/ViewModel/MainVM.cs
+++ b/STranslate/ViewModel/MainVM.cs
@@ -209,20 +209,20 @@ namespace STranslate.ViewModel
         {
             try
             {
-                GlobalConfig = ConfigHelper.Instance.ReadConfig<ConfigModel>();
+                _GlobalConfig = ConfigHelper.Instance.ReadConfig<ConfigModel>();
 
                 //配置读取主题
-                Application.Current.Resources.MergedDictionaries[0].Source = GlobalConfig.IsBright ? new Uri(_ThemeDefault) : new Uri(_ThemeDark);
+                Application.Current.Resources.MergedDictionaries[0].Source = _GlobalConfig.IsBright ? new Uri(_ThemeDefault) : new Uri(_ThemeDark);
 
                 //更新服务
-                TranslationInterface = GlobalConfig.Servers.ToList();
+                TranslationInterface = _GlobalConfig.Servers.ToList();
 
                 if (TranslationInterface.Count < 1) throw new Exception("尚未配置任何翻译接口服务");
 
                 try
                 {
                     //配置读取接口
-                    SelectedTranslationInterface = TranslationInterface[GlobalConfig.SelectServer];
+                    SelectedTranslationInterface = TranslationInterface[_GlobalConfig.SelectServer];
                 }
                 catch (Exception ex)
                 {
@@ -230,8 +230,8 @@ namespace STranslate.ViewModel
                 }
 
                 //从配置读取source target
-                InputComboSelected = GlobalConfig.SourceLanguage;
-                OutputComboSelected = GlobalConfig.TargetLanguage;
+                InputComboSelected = _GlobalConfig.SourceLanguage;
+                OutputComboSelected = _GlobalConfig.TargetLanguage;
 
                 return true;
             }
@@ -251,7 +251,7 @@ namespace STranslate.ViewModel
                     SourceLanguage = InputComboSelected,
                     TargetLanguage = OutputComboSelected,
                     SelectServer = TranslationInterface.FindIndex(x => x == SelectedTranslationInterface),
-                    Servers = GlobalConfig.Servers,
+                    Servers = _GlobalConfig.Servers,
                 });
             }
             catch (Exception ex)
@@ -401,7 +401,7 @@ namespace STranslate.ViewModel
         /// <summary>
         /// 全局配置文件
         /// </summary>
-        public ConfigModel GlobalConfig;
+        private ConfigModel _GlobalConfig;
 
         /// <summary>
         /// 识别语种