diff --git a/Ink Canvas/MainWindow_cs/MW_AutoFold.cs b/Ink Canvas/MainWindow_cs/MW_AutoFold.cs
index d17e5745..21725b1d 100644
--- a/Ink Canvas/MainWindow_cs/MW_AutoFold.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_AutoFold.cs	
@@ -290,7 +290,7 @@ namespace Ink_Canvas
                     ViewboxFloatingBar.UpdateLayout();
                     
                     // 等待一小段时间让布局完全更新
-                    await Task.Delay(50);
+                    Task.Delay(50);
                     
                     // 再次强制更新布局
                     ViewboxFloatingBar.UpdateLayout();
diff --git a/Ink Canvas/Windows/CountdownTimerWindow.xaml.cs b/Ink Canvas/Windows/CountdownTimerWindow.xaml.cs
index 03e38cc6..ce679ebb 100644
--- a/Ink Canvas/Windows/CountdownTimerWindow.xaml.cs	
+++ b/Ink Canvas/Windows/CountdownTimerWindow.xaml.cs	
@@ -207,12 +207,12 @@ namespace Ink_Canvas
             if (WindowState == WindowState.Normal)
             {
                 WindowState = WindowState.Maximized;
-                FontIconFullscreen.Glyph = "";
+                FontIconFullscreen.Text = "";
             }
             else
             {
                 WindowState = WindowState.Normal;
-                FontIconFullscreen.Glyph = "";
+                FontIconFullscreen.Text = "";
             }
         }
 
diff --git a/Ink Canvas/Windows/OperatingGuideWindow.xaml b/Ink Canvas/Windows/OperatingGuideWindow.xaml
index 8d706606..d8f84c51 100644
--- a/Ink Canvas/Windows/OperatingGuideWindow.xaml	
+++ b/Ink Canvas/Windows/OperatingGuideWindow.xaml	
@@ -80,7 +80,7 @@
                             <DropShadowEffect Direction="0" ShadowDepth="0" Opacity="0.1" BlurRadius="3"/>
                         </Border.Effect>
                         <Viewbox Margin="5.5">
-                            <ui:FontIcon Name="FontIconFullscreen" Glyph="&#xE740;" Foreground="Black" FontFamily="Segoe MDL2 Assets" FontSize="12" />
+                            <TextBlock Name="FontIconFullscreen" Text="&#xE740;" Foreground="Black" FontFamily="Segoe MDL2 Assets" FontSize="12" />
                         </Viewbox>
                     </Border>
                     <Border x:Name="BtnClose" MouseUp="BtnClose_MouseUp" HorizontalAlignment="Right" VerticalAlignment="Bottom"
@@ -90,7 +90,7 @@
                             <DropShadowEffect Direction="0" ShadowDepth="0" Opacity="0.1" BlurRadius="3"/>
                         </Border.Effect>
                         <Viewbox Margin="5.5">
-                            <ui:FontIcon Glyph="&#xE8BB;" Foreground="White" FontFamily="Segoe MDL2 Assets" FontSize="12" />
+                            <TextBlock Text="&#xE8BB;" Foreground="White" FontFamily="Segoe MDL2 Assets" FontSize="12" />
                         </Viewbox>
                     </Border>
                 </ui:SimpleStackPanel>
diff --git a/Ink Canvas/Windows/OperatingGuideWindow.xaml.cs b/Ink Canvas/Windows/OperatingGuideWindow.xaml.cs
index 68db15de..0da22c2e 100644
--- a/Ink Canvas/Windows/OperatingGuideWindow.xaml.cs	
+++ b/Ink Canvas/Windows/OperatingGuideWindow.xaml.cs	
@@ -30,12 +30,12 @@ namespace Ink_Canvas
             if (WindowState == WindowState.Normal)
             {
                 WindowState = WindowState.Maximized;
-                FontIconFullscreen.Glyph = "&#xE73F;";
+                FontIconFullscreen.Text = "&#xE73F;";
             }
             else
             {
                 WindowState = WindowState.Normal;
-                FontIconFullscreen.Glyph = "&#xE740;";
+                FontIconFullscreen.Text = "&#xE740;";
             }
         }