diff --git a/Ink Canvas/MainWindow.xaml b/Ink Canvas/MainWindow.xaml
index 6f16e824..0dfdea6a 100644
--- a/Ink Canvas/MainWindow.xaml	
+++ b/Ink Canvas/MainWindow.xaml	
@@ -2246,19 +2246,6 @@
                                     <TextBlock TextWrapping="Wrap" Foreground="#a1a1aa"
                                                Text="# 避免画布全屏，重启icc后生效。" />
                                     <ui:SimpleStackPanel Orientation="Horizontal" HorizontalAlignment="Left">
-                                        <TextBlock Foreground="#fafafa" Text="白板模式自动全屏" VerticalAlignment="Center"
-                                                   FontSize="14" Margin="0,0,16,0" />
-                                        <Border Background="#27272a" CornerRadius="4" Padding="6,2">
-                                            <TextBlock Foreground="#a1a1aa" Text="需启用避免全屏助手" FontSize="11" />
-                                        </Border>
-                                        <ui:ToggleSwitch OnContent="" OffContent=""
-                                                         Name="ToggleSwitchIsEnableAvoidFullScreenHelperForWhiteboard"
-                                                         Toggled="ToggleSwitchIsEnableAvoidFullScreenHelperForWhiteboard_OnToggled"
-                                                         IsOn="False" FontFamily="Microsoft YaHei UI" FontWeight="Bold" />
-                                    </ui:SimpleStackPanel>
-                                    <TextBlock TextWrapping="Wrap" Foreground="#a1a1aa"
-                                               Text="# 进入白板模式时自动全屏，退出时恢复到工作区域大小。" />
-                                    <ui:SimpleStackPanel Orientation="Horizontal" HorizontalAlignment="Left">
                                     
                                         <TextBlock Foreground="#fafafa" Text="启用EdgeGestureUtil"
                                                    VerticalAlignment="Center"
diff --git a/Ink Canvas/MainWindow_cs/MW_Settings.cs b/Ink Canvas/MainWindow_cs/MW_Settings.cs
index 65ec7dbd..033d48f3 100644
--- a/Ink Canvas/MainWindow_cs/MW_Settings.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_Settings.cs	
@@ -2182,7 +2182,6 @@ namespace Ink_Canvas
             Settings.Advanced.EdgeGestureUtilOnlyAffectBlackboardMode = false;
             Settings.Advanced.IsEnableFullScreenHelper = false;
             Settings.Advanced.IsEnableAvoidFullScreenHelper = false;
-            Settings.Advanced.IsEnableAvoidFullScreenHelperForWhiteboard = false;
             Settings.Advanced.IsEnableForceFullScreen = false;
             Settings.Advanced.IsEnableDPIChangeDetection = false;
             Settings.Advanced.IsEnableResolutionChangeDetection = false;
@@ -2443,13 +2442,6 @@ namespace Ink_Canvas
             }
         }
 
-        private void ToggleSwitchIsEnableAvoidFullScreenHelperForWhiteboard_OnToggled(object sender, RoutedEventArgs e)
-        {
-            if (!isLoaded) return;
-            Settings.Advanced.IsEnableAvoidFullScreenHelperForWhiteboard = ToggleSwitchIsEnableAvoidFullScreenHelperForWhiteboard.IsOn;
-            SaveSettingsToFile();
-        }
-
         private void ToggleSwitchIsEnableEdgeGestureUtil_Toggled(object sender, RoutedEventArgs e)
         {
             if (!isLoaded) return;
diff --git a/Ink Canvas/MainWindow_cs/MW_SettingsToLoad.cs b/Ink Canvas/MainWindow_cs/MW_SettingsToLoad.cs
index 6cd6f5e1..76c46951 100644
--- a/Ink Canvas/MainWindow_cs/MW_SettingsToLoad.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_SettingsToLoad.cs	
@@ -805,7 +805,6 @@ namespace Ink_Canvas
                 ToggleSwitchIsEnableResolutionChangeDetection.IsOn = Settings.Advanced.IsEnableResolutionChangeDetection;
                 ToggleSwitchIsEnableDPIChangeDetection.IsOn = Settings.Advanced.IsEnableDPIChangeDetection;
                 ToggleSwitchIsEnableAvoidFullScreenHelper.IsOn = Settings.Advanced.IsEnableAvoidFullScreenHelper;
-                ToggleSwitchIsEnableAvoidFullScreenHelperForWhiteboard.IsOn = Settings.Advanced.IsEnableAvoidFullScreenHelperForWhiteboard;
                 ToggleSwitchIsAutoBackupBeforeUpdate.IsOn = Settings.Advanced.IsAutoBackupBeforeUpdate;
                 ToggleSwitchIsAutoBackupEnabled.IsOn = Settings.Advanced.IsAutoBackupEnabled;
 
diff --git a/Ink Canvas/Resources/Settings.cs b/Ink Canvas/Resources/Settings.cs
index 970f2aba..27a54c41 100644
--- a/Ink Canvas/Resources/Settings.cs	
+++ b/Ink Canvas/Resources/Settings.cs	
@@ -582,9 +582,6 @@ namespace Ink_Canvas
         [JsonProperty("isEnableAvoidFullScreenHelper")]
         public bool IsEnableAvoidFullScreenHelper { get; set; }
 
-        [JsonProperty("isEnableAvoidFullScreenHelperForWhiteboard")]
-        public bool IsEnableAvoidFullScreenHelperForWhiteboard { get; set; }
-
         [JsonProperty("isAutoBackupBeforeUpdate")]
         public bool IsAutoBackupBeforeUpdate { get; set; } = true;