diff --git a/JianGongYun/Style/TRTCResource.xaml b/JianGongYun/Style/TRTCResource.xaml
index 7e1529c..8a0182c 100644
--- a/JianGongYun/Style/TRTCResource.xaml
+++ b/JianGongYun/Style/TRTCResource.xaml
@@ -334,7 +334,7 @@
         <Setter Property="Foreground" Value="White"></Setter>
         <Setter Property="HorizontalAlignment" Value="Left"></Setter>
         <Setter Property="VerticalAlignment" Value="Center"></Setter>
-        <Setter Property="Width" Value="125"></Setter>
+        <Setter Property="Width" Value="135"></Setter>
         <Setter Property="TextAlignment" Value="Left"></Setter>
     </Style>
     
diff --git a/JianGongYun/TRTC/LiveClassroom.cs b/JianGongYun/TRTC/LiveClassroom.cs
index 999af7d..465cad9 100644
--- a/JianGongYun/TRTC/LiveClassroom.cs
+++ b/JianGongYun/TRTC/LiveClassroom.cs
@@ -208,6 +208,11 @@ namespace JianGongYun.TRTC
             {
                 liveWinMode.MicRunning = true;
                 lTRTCCloud.startLocalAudio(settingWindowViewModel.LiveAudioLevel);
+                if (liveWinMode.IsLive)
+                {
+                    var pars = new TRTCAudioRecordingParams { filePath = "" };
+                    lTRTCCloud.startAudioRecording(ref pars);
+                }
             }
         }
         /// <summary>
diff --git a/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs b/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs
index ceeeee1..f960ba1 100644
--- a/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs
+++ b/JianGongYun/TRTC/ViewModels/SettingWindowViewModel.cs
@@ -10,6 +10,7 @@ using System.Windows.Controls;
 using JianGongYun.TRTC.Components;
 using System.Windows;
 using ManageLiteAV;
+using System.Windows.Media;
 
 namespace JianGongYun.TRTC.ViewModels
 {
@@ -420,7 +421,8 @@ namespace JianGongYun.TRTC.ViewModels
                 storage.SetValue(INI_ROOT_KEY, INI_KEY_SCREEN_RECORDING_DIR, value.ToString());//生成保存本地
                 if (PropertyChanged != null)
                 {
-                    PropertyChanged(this, new PropertyChangedEventArgs("ScreenRecordingDir"));
+                    PropertyChanged(this, new PropertyChangedEventArgs("ScreenRecordingDir")); 
+                    PropertyChanged(this, new PropertyChangedEventArgs("DiskSize"));
                 }
             }
         }
@@ -635,6 +637,35 @@ namespace JianGongYun.TRTC.ViewModels
         }
         #endregion
 
+        #region 磁盘剩余空间/// <summary>
+        /// 磁盘剩余空间
+        /// </summary>
+        public double DiskSize
+        {
+            get
+            {
+                var disk = ScreenRecordingDir.Substring(0, 1);
+                var drive = new System.IO.DriveInfo(disk);
+                return Math.Round(drive.TotalFreeSpace / 1024d / 1024d / 1024d, 1, MidpointRounding.AwayFromZero);//GB
+            }
+        }
+        public string DiskSizeStr
+        {
+            get
+            {
+                return DiskSize + "G";
+            }
+        }
+        public Brush DiskTipColor
+        {
+            get
+            {
+                return DiskSize <= 20 ? Brushes.Orange : Brushes.LawnGreen;
+            }
+        }
+        #endregion
+
+
         /// <summary>
         /// ini文件操作
         /// </summary>
diff --git a/JianGongYun/TRTC/Windows/LiveWindow.xaml b/JianGongYun/TRTC/Windows/LiveWindow.xaml
index 9428c91..77e129d 100644
--- a/JianGongYun/TRTC/Windows/LiveWindow.xaml
+++ b/JianGongYun/TRTC/Windows/LiveWindow.xaml
@@ -72,7 +72,7 @@
             <!--下方设置面板-->
             <Canvas DockPanel.Dock="Bottom" Height="70" Background="#232428">
                 <!--设置按钮-->
-                <Button Click="Setting_Btn_Click" Style="{StaticResource CusIconBtn}" Canvas.Left="27" Canvas.Top="15" Background="Transparent" BorderThickness="0">
+                <Button Click="Setting_Btn_Click" Visibility="{Binding IsLive, Converter={StaticResource UnVisibilityOfBool}}" Style="{StaticResource CusIconBtn}" Canvas.Left="27" Canvas.Top="15" Background="Transparent" BorderThickness="0">
                     <Button.Content>
                         <StackPanel>
                             <Path Width="18" Height="18" Fill="#aaaaaa" Shape.Stretch="Fill" Data="{StaticResource Icon_Setting}" />
diff --git a/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs b/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
index f19e9ca..1255d44 100644
--- a/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
+++ b/JianGongYun/TRTC/Windows/LiveWindow.xaml.cs
@@ -119,6 +119,12 @@ namespace JianGongYun.TRTC.Windows
             var start = Convert.ToBoolean(btn.Tag);
             if (start)//开始直播
             {
+                if (SettingWindowViewModel.DiskSize <= 20)
+                {
+                    var res = AduMessageBox.Show("磁盘剩余空间不足，请选择其他磁盘", "提醒");
+                    return;
+                }
+
                 //停止预览
                 LiveClassroom.StopMic();
                 LiveClassroom.StopVideoMain(BeforeLiveViewWrap);
diff --git a/JianGongYun/TRTC/Windows/SettingWindow.xaml b/JianGongYun/TRTC/Windows/SettingWindow.xaml
index d2af72c..ad04db3 100644
--- a/JianGongYun/TRTC/Windows/SettingWindow.xaml
+++ b/JianGongYun/TRTC/Windows/SettingWindow.xaml
@@ -7,7 +7,7 @@
         xmlns:local="clr-namespace:JianGongYun.TRTC.Windows"
         mc:Ignorable="d"
         ResizeMode="NoResize"          
-        Title="设置" Height="380" Width="600">
+        Title="设置" Height="380" Width="650">
     <Metro:MetroWindow.Resources>
 
         <DataTemplate x:Key="CusHeaderTitle1">
@@ -110,7 +110,10 @@
                             <Metro:AduFlatButton CornerRadius="0 3 3 0" Content="打开" x:Name="OpenDir" BorderBrush="#3399ff" BorderThickness="1" Click="OpenDir_Click"  Width="50" DockPanel.Dock="Right" Margin="0 0 10 0" Type="info" />
                             <Metro:AduFlatButton CornerRadius="3 0 0 3" Background="Transparent" BorderBrush="#3399ff" BorderThickness="1" Content="更改" x:Name="ChangeDir" Click="ChangeDir_Click"  Width="50" DockPanel.Dock="Right" Margin=" 11 0 0 0" Type="info" />
                             <Border BorderBrush="White" BorderThickness="1" CornerRadius="3">
-                                <TextBlock Cursor="IBeam" TextTrimming="CharacterEllipsis" ForceCursor="True" ToolTip="{Binding ScreenRecordingDir,Mode=OneWay}" Text="{Binding ScreenRecordingDir,Mode=OneWay}" Foreground="White" Padding="5 7"></TextBlock>
+                                <DockPanel>
+                                    <TextBlock DockPanel.Dock="Right" TextAlignment="Right" VerticalAlignment="Center" Width="50" FontSize="12" Padding="0 0 7 0" Foreground="{Binding DiskTipColor,Mode=OneWay}" Text="{Binding DiskSizeStr,Mode=OneWay}"></TextBlock>
+                                    <TextBlock TextTrimming="CharacterEllipsis" Cursor="IBeam" Background="Transparent" ForceCursor="True" ToolTip="{Binding ScreenRecordingDir,Mode=OneWay}" Text="{Binding ScreenRecordingDir,Mode=OneWay}" Foreground="White"  Padding="7"></TextBlock>
+                                </DockPanel>
                             </Border>
                         </DockPanel>
                     </StackPanel>