diff --git a/src/DownKyi/Services/AlertService.cs b/src/DownKyi/Services/AlertService.cs
index 5302459..4b46ecf 100644
--- a/src/DownKyi/Services/AlertService.cs
+++ b/src/DownKyi/Services/AlertService.cs
@@ -18,12 +18,13 @@ namespace DownKyi.Services
         /// 显示一个信息弹窗
         /// </summary>
         /// <param name="message"></param>
+        /// <param name="buttonNumber"></param>
         /// <returns></returns>
-        public ButtonResult ShowInfo(string message)
+        public ButtonResult ShowInfo(string message, int buttonNumber = 2)
         {
             VectorImage image = SystemIcon.Instance().Info;
             string title = DictionaryResource.GetString("Info");
-            return ShowMessage(image, title, message);
+            return ShowMessage(image, title, message, buttonNumber);
         }
 
         /// <summary>
@@ -35,7 +36,7 @@ namespace DownKyi.Services
         {
             VectorImage image = SystemIcon.Instance().Warning;
             string title = DictionaryResource.GetString("Warning");
-            return ShowMessage(image, title, message);
+            return ShowMessage(image, title, message, 1);
         }
 
         /// <summary>
@@ -47,10 +48,10 @@ namespace DownKyi.Services
         {
             VectorImage image = SystemIcon.Instance().Error;
             string title = DictionaryResource.GetString("Error");
-            return ShowMessage(image, title, message);
+            return ShowMessage(image, title, message, 1);
         }
 
-        public ButtonResult ShowMessage(VectorImage image, string type, string message)
+        public ButtonResult ShowMessage(VectorImage image, string type, string message, int buttonNumber)
         {
             ButtonResult result = ButtonResult.None;
             if (dialogService == null)
@@ -62,7 +63,8 @@ namespace DownKyi.Services
             {
                 { "image", image },
                 { "title", type },
-                { "message", message }
+                { "message", message },
+                { "button_number", buttonNumber }
             };
             dialogService.ShowDialog(ViewAlertDialogViewModel.Tag, param, buttonResult =>
             {
diff --git a/src/DownKyi/Services/Download/AriaDownloadService.cs b/src/DownKyi/Services/Download/AriaDownloadService.cs
index 3847787..460ae98 100644
--- a/src/DownKyi/Services/Download/AriaDownloadService.cs
+++ b/src/DownKyi/Services/Download/AriaDownloadService.cs
@@ -347,7 +347,8 @@ namespace DownKyi.Services.Download
                 AlertService alertService = new AlertService(dialogService);
                 ButtonResult result = alertService.ShowMessage(SystemIcon.Instance().Error,
                     $"Aria2 {DictionaryResource.GetString("Error")}",
-                    errorMessage);
+                    errorMessage,
+                    1);
                 return;
             }
 
diff --git a/src/DownKyi/ViewModels/Dialogs/ViewAlertDialogViewModel.cs b/src/DownKyi/ViewModels/Dialogs/ViewAlertDialogViewModel.cs
index 4bd897f..02ba1ee 100644
--- a/src/DownKyi/ViewModels/Dialogs/ViewAlertDialogViewModel.cs
+++ b/src/DownKyi/ViewModels/Dialogs/ViewAlertDialogViewModel.cs
@@ -73,16 +73,22 @@ namespace DownKyi.ViewModels.Dialogs
             Image = parameters.GetValue<VectorImage>("image");
             Title = parameters.GetValue<string>("title");
             Message = parameters.GetValue<string>("message");
+            int number = parameters.GetValue<int>("button_number");
 
-            if (Image == SystemIcon.Instance().Error)
+            switch (number)
             {
-                AloneButton = Visibility.Visible;
-                TwoButton = Visibility.Collapsed;
-            }
-            else
-            {
-                AloneButton = Visibility.Collapsed;
-                TwoButton = Visibility.Visible;
+                case 1:
+                    AloneButton = Visibility.Visible;
+                    TwoButton = Visibility.Collapsed;
+                    break;
+                case 2:
+                    AloneButton = Visibility.Collapsed;
+                    TwoButton = Visibility.Visible;
+                    break;
+                default:
+                    AloneButton = Visibility.Collapsed;
+                    TwoButton = Visibility.Visible;
+                    break;
             }
         }
 
diff --git a/src/DownKyi/Views/Dialogs/ViewAlertDialog.xaml b/src/DownKyi/Views/Dialogs/ViewAlertDialog.xaml
index becee3e..17eb4b3 100644
--- a/src/DownKyi/Views/Dialogs/ViewAlertDialog.xaml
+++ b/src/DownKyi/Views/Dialogs/ViewAlertDialog.xaml
@@ -90,24 +90,28 @@
                 </Button>
             </Grid>
 
-            <Grid Grid.Row="1" Margin="15,10,15,20">
+            <Grid Grid.Row="1" Margin="0,10,0,20">
                 <Grid.RowDefinitions>
                     <RowDefinition />
                     <RowDefinition />
                 </Grid.RowDefinitions>
 
-                <TextBlock
+                <ScrollViewer
                     Grid.Row="0"
                     MaxWidth="500"
-                    MaxHeight="180"
+                    MaxHeight="190"
                     Margin="0,10,0,30"
-                    HorizontalAlignment="Center"
-                    VerticalAlignment="Center"
-                    FontSize="14"
-                    Foreground="{DynamicResource BrushTextDark}"
-                    Text="{Binding Message}"
-                    TextTrimming="CharacterEllipsis"
-                    TextWrapping="WrapWithOverflow" />
+                    Padding="15,0"
+                    VerticalScrollBarVisibility="Auto">
+                    <TextBlock
+                        HorizontalAlignment="Center"
+                        VerticalAlignment="Center"
+                        FontSize="14"
+                        Foreground="{DynamicResource BrushTextDark}"
+                        Text="{Binding Message}"
+                        TextTrimming="CharacterEllipsis"
+                        TextWrapping="WrapWithOverflow" />
+                </ScrollViewer>
 
                 <Button
                     Grid.Row="1"