diff --git a/PocketFanController/AboutWindow.xaml b/PocketFanController/AboutWindow.xaml
index 1bd95b0..5726629 100644
--- a/PocketFanController/AboutWindow.xaml
+++ b/PocketFanController/AboutWindow.xaml
@@ -7,7 +7,7 @@
         Title="About | Pocket Fan Controller" Height="300" Width="300" ScrollViewer.VerticalScrollBarVisibility="Disabled" ShowInTaskbar="False" ResizeMode="NoResize" WindowStartupLocation="CenterScreen">
     <StackPanel>
         <TextBlock Padding="8,0,0,0" Margin="0,5,0,0">Pocket Fan Controller</TextBlock>
-        <TextBlock Padding="15,0,0,0">Version 0.4.1</TextBlock>
+        <TextBlock Padding="15,0,0,0">Version 0.5.0</TextBlock>
         <TextBlock Padding="15,0,0,0">© 2017 Takafumi Miyake</TextBlock>
 
         <TextBlock Padding="8,0,0,0" Margin="0,10,0,0">Third-Party Software Usage and Licenses</TextBlock>
diff --git a/PocketFanController/ConfigWindow.xaml b/PocketFanController/ConfigWindow.xaml
new file mode 100644
index 0000000..fb5851a
--- /dev/null
+++ b/PocketFanController/ConfigWindow.xaml
@@ -0,0 +1,43 @@
+<Window x:Class="PocketFanController.ConfigWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:PocketFanController"
+        mc:Ignorable="d"
+        Title="Config | Pocket Fan Controller"  Height="240" Width="380" Icon="Icon.ico" ResizeMode="NoResize" WindowStartupLocation="CenterScreen">
+    <Window.DataContext>
+        <local:ConfigWindowViewModel />
+    </Window.DataContext>
+    <StackPanel Orientation="Vertical" Margin="5,5,5,5">
+        <Label Content="Config of the CPU temperature at which the fan operates.&#xa;This setting is applied in the case of Auto (Manual)."/>
+        <GroupBox Header="Config" Margin="3,1,3,0">
+            <StackPanel Orientation="Vertical">
+                <StackPanel Orientation="Horizontal" Margin="0,2,2,2">
+                    <Label Content="Margin"/>
+                    <TextBox x:Name="Margin" Width="24" Margin="2" Text="{Binding Margin, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" HorizontalContentAlignment="Right"/>
+                </StackPanel>
+                <StackPanel Orientation="Horizontal" Margin="0,2,2,2">
+                    <Label Content="Slowest ≧ 0℃"/>
+                    
+                    <Label Content="Slow ≧" Margin="3,0,0,0"/>
+                    <TextBox x:Name="BorderOfSlow" Width="24" Margin="0,2,3,2" Text="{Binding BorderOfSlow, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" HorizontalContentAlignment="Right"/>
+                    
+                    <Label Content="Fast ≧" Margin="3,0,0,0"/>
+                    <TextBox x:Name="BorderOfFast" Width="24" Margin="0,2,3,2" Text="{Binding BorderOfFast, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" HorizontalContentAlignment="Right"/>
+                    
+                    <Label Content="Fastest ≧" Margin="3,0,0,0"/>
+                    <TextBox x:Name="BorderOfFastest" Width="24" Margin="0,2,2,2" Text="{Binding BorderOfFastest, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" HorizontalContentAlignment="Right"/>
+                </StackPanel>
+            </StackPanel>
+        </GroupBox>
+        <StackPanel Orientation="Horizontal" Margin="0,10,3,1" HorizontalAlignment="Right">
+            <Button Content="Load default" Width="90" Command="{Binding LoadDefaultButton}"/>
+        </StackPanel>
+        <StackPanel Orientation="Horizontal" Margin="0,10,3,5" HorizontalAlignment="Right">
+            <Button Content="OK" Width="55" Command="{Binding OkButton}"/>
+            <Button Content="Cancel" Width="55" Margin="8,0,0,0" IsCancel="True" Command="{Binding CancelButton}"/>
+            <Button Content="Apply" Width="55" Margin="8,0,0,0" Command="{Binding ApplyButton}"/>
+        </StackPanel>
+    </StackPanel>
+</Window>
diff --git a/PocketFanController/ConfigWindow.xaml.cs b/PocketFanController/ConfigWindow.xaml.cs
new file mode 100644
index 0000000..3a213b9
--- /dev/null
+++ b/PocketFanController/ConfigWindow.xaml.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace PocketFanController
+{
+    /// <summary>
+    /// ConfigWindow.xaml の相互作用ロジック
+    /// </summary>
+    public partial class ConfigWindow : Window
+    {
+        public ConfigWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/PocketFanController/ConfigWindowViewModel.cs b/PocketFanController/ConfigWindowViewModel.cs
new file mode 100644
index 0000000..de03a2e
--- /dev/null
+++ b/PocketFanController/ConfigWindowViewModel.cs
@@ -0,0 +1,92 @@
+using System.Windows;
+using System.Windows.Input;
+
+namespace PocketFanController
+{
+    public class ConfigWindowViewModel : ViewModelBase
+    {
+        private Model Model = Model.Instance;
+
+        public ICommand LoadDefaultButton { get; }
+        public ICommand OkButton { get; }
+        public ICommand CancelButton { get; }
+        public ICommand ApplyButton { get; }
+
+        public int Margin
+        {
+            get => Model.ManualMargin;
+            set
+            {
+                Model.ManualMargin = value;
+                OnPropertyChanged("Margin");
+            }
+        }
+
+        public int BorderOfSlow
+        {
+            get => Model.ManualT0;
+            set
+            {
+                Model.ManualT0 =value;
+                OnPropertyChanged("BorderOfSlow");
+            }
+        }
+        public int BorderOfFast
+        {
+            get => Model.ManualT1;
+            set
+            {
+                Model.ManualT1 = value;
+                OnPropertyChanged("BorderOfFast");
+            }
+        }
+        public int BorderOfFastest
+        {
+            get => Model.ManualT2;
+            set
+            {
+                Model.ManualT2 = value;
+                OnPropertyChanged("BorderOfFastest");
+            }
+        }
+
+        public ConfigWindowViewModel()
+        {
+            LoadDefaultButton = new RelayCommand(() =>
+            {
+                Margin = 5;
+                BorderOfSlow = 40;
+                BorderOfFast = 60;
+                BorderOfFastest = 75;
+            });
+
+            OkButton = new RelayCommand(() =>
+            {
+                Model.SaveManualConfig(Margin,BorderOfSlow,BorderOfFast,BorderOfFastest);
+                Application.Current.MainWindow.Close();
+            });
+
+            ApplyButton = new RelayCommand(() =>
+            {
+                Model.SaveManualConfig(Margin, BorderOfSlow, BorderOfFast, BorderOfFastest);
+                MessageBox.Show("Apply completed.");
+            });
+
+            CancelButton = new RelayCommand(() =>
+            {
+                Application.Current.MainWindow.Close();
+            });
+
+            Model.GetManualConfigs();
+            UpdateStatus();
+        }
+
+        private void UpdateStatus()
+        {
+            OnPropertyChanged("Margin");
+            OnPropertyChanged("BorderOfSlow");
+            OnPropertyChanged("BorderOfFast");
+            OnPropertyChanged("BorderOfFastest");
+        }
+    }
+}
\ No newline at end of file
diff --git a/PocketFanController/MainWindow.xaml b/PocketFanController/ControllerWindow.xaml
similarity index 74%
rename from PocketFanController/MainWindow.xaml
rename to PocketFanController/ControllerWindow.xaml
index 01af84e..fd1be27 100644
--- a/PocketFanController/MainWindow.xaml
+++ b/PocketFanController/ControllerWindow.xaml
@@ -1,18 +1,19 @@
-<Window x:Class="PocketFanController.MainWindow"
+<Window x:Class="PocketFanController.ControllerWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:PocketFanController"
         mc:Ignorable="d"
-        Title="Pocket Fan Controller" Height="100" Width="352" ResizeMode="NoResize" WindowStartupLocation="CenterScreen" Icon="Icon.ico" ShowInTaskbar="False" ScrollViewer.VerticalScrollBarVisibility="Disabled">
+        Title="Pocket Fan Controller" Height="100" Width="462" ResizeMode="NoResize" WindowStartupLocation="CenterScreen" Icon="Icon.ico" ShowInTaskbar="False" ScrollViewer.VerticalScrollBarVisibility="Disabled">
     <Window.DataContext>
-        <local:ViewModel />
+        <local:ControllerWindowViewModel />
     </Window.DataContext>
     <StackPanel>
         <Label x:Name="CurrentStatus" Content="{Binding CurrentStateText,Mode=OneWay,UpdateSourceTrigger=PropertyChanged}"/>
         <StackPanel Orientation="Horizontal" Margin="0,5,0,0" HorizontalAlignment="Left">
-            <Button x:Name="SetDefault" Content="Auto (Default)" HorizontalAlignment="Left"  VerticalAlignment="Center" Width="100" Command="{Binding SetDefault}" Margin="5,0,10,0" HorizontalContentAlignment="Center" />
+            <Button x:Name="SetDefault" Content="Auto (Default)" HorizontalAlignment="Left" VerticalAlignment="Center" Width="100" Command="{Binding SetDefault}" Margin="5,0,10,0" HorizontalContentAlignment="Center" />
+            <Button x:Name="SetManual" Content="Auto (Manual)" HorizontalAlignment="Left" VerticalAlignment="Center" Width="100" Command="{Binding SetDefault}" Margin="5,0" HorizontalContentAlignment="Center" />
             <Button x:Name="SetSlowest" Content="Slowest" HorizontalAlignment="Left"  VerticalAlignment="Center" Width="45" Command="{Binding SetSlowest}" Margin="5,0"/>
             <Button x:Name="SetSlow" Content="Slow" HorizontalAlignment="Left"  VerticalAlignment="Center" Width="45" Command="{Binding SetSlow}" Margin="5,0"/>
             <Button x:Name="SetFast" Content="Fast" HorizontalAlignment="Left" VerticalAlignment="Center" Width="45" Command="{Binding SetFast}" Margin="5,0"/>
diff --git a/PocketFanController/MainWindow.xaml.cs b/PocketFanController/ControllerWindow.xaml.cs
similarity index 52%
rename from PocketFanController/MainWindow.xaml.cs
rename to PocketFanController/ControllerWindow.xaml.cs
index fc7b5ce..ace4386 100644
--- a/PocketFanController/MainWindow.xaml.cs
+++ b/PocketFanController/ControllerWindow.xaml.cs
@@ -3,13 +3,13 @@
 namespace PocketFanController
 {
     /// <summary>
-    /// MainWindow.xaml の相互作用ロジック
+    /// ControllerWindow.xaml の相互作用ロジック
     /// </summary>
-    public partial class MainWindow : Window
+    public partial class ControllerWindow : Window
     {
-        public MainWindow()
+        public ControllerWindow()
         {
             InitializeComponent();
         }
     }
-}
+}
\ No newline at end of file
diff --git a/PocketFanController/ViewModel.cs b/PocketFanController/ControllerWindowViewModel.cs
similarity index 84%
rename from PocketFanController/ViewModel.cs
rename to PocketFanController/ControllerWindowViewModel.cs
index 193f551..2a21a3a 100644
--- a/PocketFanController/ViewModel.cs
+++ b/PocketFanController/ControllerWindowViewModel.cs
@@ -2,17 +2,18 @@
 
 namespace PocketFanController
 {
-    public class ViewModel:ViewModelBase
+    public class ControllerWindowViewModel : ViewModelBase
     {
         private Model Model = Model.Instance;
 
         public ICommand SetDefault { get; }
+        public ICommand SetManual { get; }
         public ICommand SetSlow { get; }
         public ICommand SetFast { get; }
         public ICommand SetFastest { get; }
         public ICommand SetSlowest { get; }
 
-        public ViewModel()
+        public ControllerWindowViewModel()
         {
             SetDefault = new RelayCommand(()=>
             {
@@ -20,6 +21,12 @@ public ViewModel()
                 CurrentState = 0;
             });
 
+            SetManual = new RelayCommand(() =>
+            {
+                Model.SetManual();
+                CurrentState = 5;
+            });
+
             SetSlow = new RelayCommand(() =>
             {
                 Model.SetSlow();
@@ -73,6 +80,8 @@ public string CurrentStateText
                         return "Current status : Slow";
                     case 4:
                         return "Current status : Slowest";
+                    case 5:
+                        return "Current status : Auto (Manual)";
                     default:
                         return "Current status : Auto (Default)";
                 }
diff --git a/PocketFanController/Model.cs b/PocketFanController/Model.cs
index d7216f3..92cbd9d 100644
--- a/PocketFanController/Model.cs
+++ b/PocketFanController/Model.cs
@@ -16,6 +16,19 @@ private Model(){}
 
         public int CurrentState { get; set; } = 0;
 
+        public int ManualMargin { get; set; }
+        public int ManualT0 { get; set; }
+        public int ManualT1 { get; set; }
+        public int ManualT2 { get; set; }
+
+        public void GetManualConfigs()
+        {
+            ManualMargin = ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedmargin") == 0 ? 5 : ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedmargin");
+            ManualT0 = ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt0") == 0 ? 40 : ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt0");
+            ManualT1 = ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt1") == 0 ? 60 : ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt1");
+            ManualT2 = ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt2") == 0 ? 75 : ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt2");
+        }
+
         public void GetCurrentStatus()
         {
             var state0 = new[] {40, 60, 75};
@@ -37,10 +50,14 @@ public void GetCurrentStatus()
                     CurrentState = s.Index;
                 }
             }
+
+            if (current.SequenceEqual(states[CurrentState])) return;
+            CurrentState = 5;
         }
 
         public void SetDefault()
         {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "margin", 5);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t0", 40);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t1", 60);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t2", 75);
@@ -49,6 +66,7 @@ public void SetDefault()
 
         public void SetSlow()
         {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "margin", 5);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t0", 10);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t1", 99);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t2", 99);
@@ -57,6 +75,7 @@ public void SetSlow()
 
         public void SetFast()
         {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "margin", 5);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t0", 99);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t1", 10);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t2", 99);
@@ -65,6 +84,7 @@ public void SetFast()
 
         public void SetFastest()
         {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "margin", 5);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t0", 99);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t1", 99);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t2", 10);
@@ -73,6 +93,7 @@ public void SetFastest()
 
         public void SetSlowest()
         {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "margin", 5);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t0", 99);
             WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t1", 99);
             //熱くなりすぎたらファンを全開にする。
@@ -80,6 +101,22 @@ public void SetSlowest()
             RestartService();
         }
 
+        public void SetManual()
+        {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "margin", ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedmargin"));
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t0", ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt0"));
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t1", ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt1"));
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "t2", ReadReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt2"));
+            RestartService();
+        }
+
+        public void SaveManualConfig(int margin, int t0, int t1, int t2)
+        {
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedmargin", margin);
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt0", t0);
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt1", t1);
+            WriteReg(@"SYSTEM\CurrentControlSet\Services\wfan0109", "savedt2", t2);
+        }
 
         public void WriteReg(string subKey, string keyName, int value)
         {
@@ -98,7 +135,6 @@ public int ReadReg(string subKey, string keyName)
             catch
             {
                 return 0;
-
             }
             return 0;
         }
diff --git a/PocketFanController/NotifyIconWrapper.Designer.cs b/PocketFanController/NotifyIconWrapper.Designer.cs
index e44f73a..318f89b 100644
--- a/PocketFanController/NotifyIconWrapper.Designer.cs
+++ b/PocketFanController/NotifyIconWrapper.Designer.cs
@@ -35,6 +35,7 @@ private void InitializeComponent()
             this.toolStripMenuItem_CpuTemp = new System.Windows.Forms.ToolStripMenuItem();
             this.toolStripSeparator3 = new System.Windows.Forms.ToolStripSeparator();
             this.toolStripMenuItem_OpenWindow = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripMenuItem_OpenAbout = new System.Windows.Forms.ToolStripMenuItem();
             this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
             this.toolStripMenuItem_SetDefault = new System.Windows.Forms.ToolStripMenuItem();
             this.toolStripMenuItem_SetFastest = new System.Windows.Forms.ToolStripMenuItem();
@@ -43,7 +44,8 @@ private void InitializeComponent()
             this.toolStripMenuItem_SetSlowest = new System.Windows.Forms.ToolStripMenuItem();
             this.toolStripSeparator2 = new System.Windows.Forms.ToolStripSeparator();
             this.toolStripMenuItem_Exit = new System.Windows.Forms.ToolStripMenuItem();
-            this.toolStripMenuItem_OpenAbout = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripMenuItem_OpenConfig = new System.Windows.Forms.ToolStripMenuItem();
+            this.toolStripMenuItem_SetManual = new System.Windows.Forms.ToolStripMenuItem();
             this.contextMenuStrip1.SuspendLayout();
             // 
             // notifyIcon1
@@ -60,9 +62,11 @@ private void InitializeComponent()
             this.toolStripMenuItem_CpuTemp,
             this.toolStripSeparator3,
             this.toolStripMenuItem_OpenWindow,
+            this.toolStripMenuItem_OpenConfig,
             this.toolStripMenuItem_OpenAbout,
             this.toolStripSeparator1,
             this.toolStripMenuItem_SetDefault,
+            this.toolStripMenuItem_SetManual,
             this.toolStripMenuItem_SetFastest,
             this.toolStripMenuItem_SetFast,
             this.toolStripMenuItem_SetSlow,
@@ -70,75 +74,87 @@ private void InitializeComponent()
             this.toolStripSeparator2,
             this.toolStripMenuItem_Exit});
             this.contextMenuStrip1.Name = "contextMenuStrip1";
-            this.contextMenuStrip1.Size = new System.Drawing.Size(212, 292);
+            this.contextMenuStrip1.Size = new System.Drawing.Size(185, 286);
             // 
             // toolStripMenuItem_CpuTemp
             // 
             this.toolStripMenuItem_CpuTemp.Name = "toolStripMenuItem_CpuTemp";
-            this.toolStripMenuItem_CpuTemp.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_CpuTemp.Size = new System.Drawing.Size(184, 24);
             // 
             // toolStripSeparator3
             // 
             this.toolStripSeparator3.Name = "toolStripSeparator3";
-            this.toolStripSeparator3.Size = new System.Drawing.Size(208, 6);
+            this.toolStripSeparator3.Size = new System.Drawing.Size(181, 6);
             // 
             // toolStripMenuItem_OpenWindow
             // 
             this.toolStripMenuItem_OpenWindow.Name = "toolStripMenuItem_OpenWindow";
-            this.toolStripMenuItem_OpenWindow.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_OpenWindow.Size = new System.Drawing.Size(184, 24);
             this.toolStripMenuItem_OpenWindow.Text = "Show Controller";
             // 
+            // toolStripMenuItem_OpenAbout
+            // 
+            this.toolStripMenuItem_OpenAbout.Name = "toolStripMenuItem_OpenAbout";
+            this.toolStripMenuItem_OpenAbout.Size = new System.Drawing.Size(184, 24);
+            this.toolStripMenuItem_OpenAbout.Text = "Show About";
+            // 
             // toolStripSeparator1
             // 
             this.toolStripSeparator1.Name = "toolStripSeparator1";
-            this.toolStripSeparator1.Size = new System.Drawing.Size(208, 6);
+            this.toolStripSeparator1.Size = new System.Drawing.Size(181, 6);
             // 
             // toolStripMenuItem_SetDefault
             // 
             this.toolStripMenuItem_SetDefault.Name = "toolStripMenuItem_SetDefault";
-            this.toolStripMenuItem_SetDefault.Size = new System.Drawing.Size(211, 30);
-            this.toolStripMenuItem_SetDefault.Text = "Auto(Default)";
+            this.toolStripMenuItem_SetDefault.Size = new System.Drawing.Size(184, 24);
+            this.toolStripMenuItem_SetDefault.Text = "Auto (Default)";
             // 
             // toolStripMenuItem_SetFastest
             // 
             this.toolStripMenuItem_SetFastest.Name = "toolStripMenuItem_SetFastest";
-            this.toolStripMenuItem_SetFastest.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_SetFastest.Size = new System.Drawing.Size(184, 24);
             this.toolStripMenuItem_SetFastest.Text = "Fastest";
             // 
             // toolStripMenuItem_SetFast
             // 
             this.toolStripMenuItem_SetFast.Name = "toolStripMenuItem_SetFast";
-            this.toolStripMenuItem_SetFast.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_SetFast.Size = new System.Drawing.Size(184, 24);
             this.toolStripMenuItem_SetFast.Text = "Fast";
             // 
             // toolStripMenuItem_SetSlow
             // 
             this.toolStripMenuItem_SetSlow.Name = "toolStripMenuItem_SetSlow";
-            this.toolStripMenuItem_SetSlow.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_SetSlow.Size = new System.Drawing.Size(184, 24);
             this.toolStripMenuItem_SetSlow.Text = "Slow";
             // 
             // toolStripMenuItem_SetSlowest
             // 
             this.toolStripMenuItem_SetSlowest.Name = "toolStripMenuItem_SetSlowest";
-            this.toolStripMenuItem_SetSlowest.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_SetSlowest.Size = new System.Drawing.Size(184, 24);
             this.toolStripMenuItem_SetSlowest.Text = "Slowest";
             // 
             // toolStripSeparator2
             // 
             this.toolStripSeparator2.Name = "toolStripSeparator2";
-            this.toolStripSeparator2.Size = new System.Drawing.Size(208, 6);
+            this.toolStripSeparator2.Size = new System.Drawing.Size(181, 6);
             // 
             // toolStripMenuItem_Exit
             // 
             this.toolStripMenuItem_Exit.Name = "toolStripMenuItem_Exit";
-            this.toolStripMenuItem_Exit.Size = new System.Drawing.Size(211, 30);
+            this.toolStripMenuItem_Exit.Size = new System.Drawing.Size(184, 24);
             this.toolStripMenuItem_Exit.Text = "Exit";
             // 
-            // toolStripMenuItem_OpenAbout
+            // toolStripMenuItem_OpenConfig
             // 
-            this.toolStripMenuItem_OpenAbout.Name = "toolStripMenuItem_OpenAbout";
-            this.toolStripMenuItem_OpenAbout.Size = new System.Drawing.Size(211, 30);
-            this.toolStripMenuItem_OpenAbout.Text = "Show About";
+            this.toolStripMenuItem_OpenConfig.Name = "toolStripMenuItem_OpenConfig";
+            this.toolStripMenuItem_OpenConfig.Size = new System.Drawing.Size(184, 24);
+            this.toolStripMenuItem_OpenConfig.Text = "Show Config";
+            // 
+            // toolStripMenuItem_SetManual
+            // 
+            this.toolStripMenuItem_SetManual.Name = "toolStripMenuItem_SetManual";
+            this.toolStripMenuItem_SetManual.Size = new System.Drawing.Size(184, 24);
+            this.toolStripMenuItem_SetManual.Text = "Auto (Manual)";
             this.contextMenuStrip1.ResumeLayout(false);
 
         }
@@ -159,5 +175,7 @@ private void InitializeComponent()
         private System.Windows.Forms.ToolStripSeparator toolStripSeparator3;
         private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem_CpuTemp;
         private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem_OpenAbout;
+        private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem_OpenConfig;
+        private System.Windows.Forms.ToolStripMenuItem toolStripMenuItem_SetManual;
     }
 }
diff --git a/PocketFanController/NotifyIconWrapper.cs b/PocketFanController/NotifyIconWrapper.cs
index 564b1d8..0af5e01 100644
--- a/PocketFanController/NotifyIconWrapper.cs
+++ b/PocketFanController/NotifyIconWrapper.cs
@@ -14,9 +14,11 @@ public NotifyIconWrapper()
 
             toolStripMenuItem_Exit.Click += Exit;
             toolStripMenuItem_OpenWindow.Click += OpenWindow;
+            toolStripMenuItem_OpenConfig.Click += OpenConfig;
             toolStripMenuItem_OpenAbout.Click += OpenAbout;
 
             toolStripMenuItem_SetDefault.Click += SetDefault;
+            toolStripMenuItem_SetManual.Click += SetManual;
             toolStripMenuItem_SetFastest.Click += SetFastest;
             toolStripMenuItem_SetFast.Click += SetFast;
             toolStripMenuItem_SetSlow.Click += SetSlow;
@@ -34,39 +36,23 @@ public NotifyIconWrapper(IContainer container)
             InitializeComponent();
         }
 
-        private void SetDefault (object sender, EventArgs e)
-        {
-            Model.SetDefault();
-        }
+        private void SetDefault (object sender, EventArgs e) => Model.SetDefault();
 
-        private void SetFastest(object sender, EventArgs e)
-        {
-            Model.SetFastest();
-        }
+        private void SetManual(object sender, EventArgs e) => Model.SetManual();
 
-        private void SetFast(object sender, EventArgs e)
-        {
-            Model.SetFast();
-        }
+        private void SetFastest(object sender, EventArgs e) => Model.SetFastest();
 
-        private void SetSlow(object sender, EventArgs e)
-        {
-            Model.SetSlow();
-        }
+        private void SetFast(object sender, EventArgs e) => Model.SetFast();
 
-        private void SetSlowest(object sender, EventArgs e)
-        {
-            Model.SetSlowest();
-        }
+        private void SetSlow(object sender, EventArgs e) => Model.SetSlow();
 
-        private void Exit(object sender, EventArgs e)
-        {
-            Application.Current.Shutdown();
-        }
+        private void SetSlowest(object sender, EventArgs e) => Model.SetSlowest();
+
+        private void Exit(object sender, EventArgs e) => Application.Current.Shutdown();
 
         private void OpenWindow(object sender, EventArgs e)
         {
-            var mainWindow = new MainWindow();
+            var mainWindow = new ControllerWindow();
             mainWindow.Show();
         }
 
@@ -76,6 +62,12 @@ private void OpenAbout(object sender, EventArgs e)
             aboutWindow.Show();
         }
 
+        private void OpenConfig(object sender, EventArgs e)
+        {
+            var configWindow = new ConfigWindow();
+            configWindow.Show();
+        }
+
         private void UpdateCurrentStatus(object sender, EventArgs e)
         {
             toolStripMenuItem_CpuTemp.Text = "CPU " + Model.GetCpuTemp() + "℃";
@@ -86,13 +78,15 @@ private void UpdateCurrentStatus(object sender, EventArgs e)
             {
                 case 0:
                     toolStripMenuItem_SetDefault.Checked = true;
-                    toolStripMenuItem_SetFastest.Checked=false;
+                    toolStripMenuItem_SetManual.Checked = false;
+                    toolStripMenuItem_SetFastest.Checked = false;
                     toolStripMenuItem_SetFast.Checked = false;
                     toolStripMenuItem_SetSlow.Checked = false;
                     toolStripMenuItem_SetSlowest.Checked = false;
                     break;
                 case 1:
                     toolStripMenuItem_SetDefault.Checked = false;
+                    toolStripMenuItem_SetManual.Checked = false;
                     toolStripMenuItem_SetFastest.Checked = true;
                     toolStripMenuItem_SetFast.Checked = false;
                     toolStripMenuItem_SetSlow.Checked = false;
@@ -100,6 +94,7 @@ private void UpdateCurrentStatus(object sender, EventArgs e)
                     break;
                 case 2:
                     toolStripMenuItem_SetDefault.Checked = false;
+                    toolStripMenuItem_SetManual.Checked = false;
                     toolStripMenuItem_SetFastest.Checked = false;
                     toolStripMenuItem_SetFast.Checked = true;
                     toolStripMenuItem_SetSlow.Checked = false;
@@ -107,6 +102,7 @@ private void UpdateCurrentStatus(object sender, EventArgs e)
                     break;
                 case 3:
                     toolStripMenuItem_SetDefault.Checked = false;
+                    toolStripMenuItem_SetManual.Checked = false;
                     toolStripMenuItem_SetFastest.Checked = false;
                     toolStripMenuItem_SetFast.Checked = false;
                     toolStripMenuItem_SetSlow.Checked = true;
@@ -114,13 +110,23 @@ private void UpdateCurrentStatus(object sender, EventArgs e)
                     break;
                 case 4:
                     toolStripMenuItem_SetDefault.Checked = false;
+                    toolStripMenuItem_SetManual.Checked = false;
                     toolStripMenuItem_SetFastest.Checked = false;
                     toolStripMenuItem_SetFast.Checked = false;
                     toolStripMenuItem_SetSlow.Checked = false;
                     toolStripMenuItem_SetSlowest.Checked = true;
                     break;
+                case 5:
+                    toolStripMenuItem_SetDefault.Checked = false;
+                    toolStripMenuItem_SetManual.Checked = true;
+                    toolStripMenuItem_SetFastest.Checked = false;
+                    toolStripMenuItem_SetFast.Checked = false;
+                    toolStripMenuItem_SetSlow.Checked = false;
+                    toolStripMenuItem_SetSlowest.Checked = false;
+                    break;
                 default:
                     toolStripMenuItem_SetDefault.Checked = true;
+                    toolStripMenuItem_SetManual.Checked = false;
                     toolStripMenuItem_SetFastest.Checked = false;
                     toolStripMenuItem_SetFast.Checked = false;
                     toolStripMenuItem_SetSlow.Checked = false;
diff --git a/PocketFanController/NotifyIconWrapper.resx b/PocketFanController/NotifyIconWrapper.resx
index d2ca1e1..7d104d1 100644
--- a/PocketFanController/NotifyIconWrapper.resx
+++ b/PocketFanController/NotifyIconWrapper.resx
@@ -118,7 +118,7 @@
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
   <metadata name="notifyIcon1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-    <value>17, 65</value>
+    <value>17, 60</value>
   </metadata>
   <metadata name="contextMenuStrip1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
     <value>170, 17</value>
diff --git a/PocketFanController/PocketFanController.csproj b/PocketFanController/PocketFanController.csproj
index 6da85ba..9382492 100644
--- a/PocketFanController/PocketFanController.csproj
+++ b/PocketFanController/PocketFanController.csproj
@@ -69,6 +69,10 @@
     <Compile Include="AboutWindow.xaml.cs">
       <DependentUpon>AboutWindow.xaml</DependentUpon>
     </Compile>
+    <Compile Include="ConfigWindow.xaml.cs">
+      <DependentUpon>ConfigWindow.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="ConfigWindowViewModel.cs" />
     <Compile Include="NotifyIconWrapper.cs">
       <SubType>Component</SubType>
     </Compile>
@@ -76,13 +80,17 @@
       <DependentUpon>NotifyIconWrapper.cs</DependentUpon>
     </Compile>
     <Compile Include="RelayCommand.cs" />
-    <Compile Include="ViewModel.cs" />
+    <Compile Include="ControllerWindowViewModel.cs" />
     <Compile Include="ViewModelBase.cs" />
     <Page Include="AboutWindow.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
-    <Page Include="MainWindow.xaml">
+    <Page Include="ConfigWindow.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="ControllerWindow.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </Page>
@@ -90,8 +98,8 @@
       <DependentUpon>App.xaml</DependentUpon>
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="MainWindow.xaml.cs">
-      <DependentUpon>MainWindow.xaml</DependentUpon>
+    <Compile Include="ControllerWindow.xaml.cs">
+      <DependentUpon>ControllerWindow.xaml</DependentUpon>
       <SubType>Code</SubType>
     </Compile>
   </ItemGroup>
diff --git a/PocketFanController/Properties/AssemblyInfo.cs b/PocketFanController/Properties/AssemblyInfo.cs
index 0049ef5..50d2906 100644
--- a/PocketFanController/Properties/AssemblyInfo.cs
+++ b/PocketFanController/Properties/AssemblyInfo.cs
@@ -51,7 +51,7 @@
 // すべての値を指定するか、次を使用してビルド番号とリビジョン番号を既定に設定できます
 // 既定値にすることができます:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.4.1.0")]
-[assembly: AssemblyFileVersion("0.4.1.0")]
+[assembly: AssemblyVersion("0.5.0.0")]
+[assembly: AssemblyFileVersion("0.5.0.0")]
 [assembly: NeutralResourcesLanguage("en")]
 
diff --git a/README.md b/README.md
index c8dd80e..8f008c2 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 # Pocket Fan Controller
   
-Manually set the fan speed of "GPD Pocket".  
-It can be set in 4 stages.  
+Manually set the fan speed of "GPD Pocket (Windows Edition)".  
+It can be set in 4 stages.   
+Also, it is possible to manually set the CPU temperature at which the fan operates.  
 For safety reasons, it returns to the default (automatic) at the end of the application.  
   
 In the unlikely event the hardware may break down.  
@@ -10,4 +11,5 @@ Please use at your own risk.
 You can download from the [release page](https://github.com/t-miyake/PocketFanController/releases).  
 
 ![Screenshot](https://github.com/t-miyake/PocketFanController/blob/master/Screenshot.png)
-![Screenshot](https://github.com/t-miyake/PocketFanController/blob/master/Screenshot2.png)
\ No newline at end of file
+![Screenshot](https://github.com/t-miyake/PocketFanController/blob/master/Screenshot2.png)
+![Screenshot](https://github.com/t-miyake/PocketFanController/blob/master/Screenshot3.png)
\ No newline at end of file
diff --git a/Screenshot.png b/Screenshot.png
index a163a7b..d434b27 100644
Binary files a/Screenshot.png and b/Screenshot.png differ
diff --git a/Screenshot2.png b/Screenshot2.png
index b9a2e5b..61449b4 100644
Binary files a/Screenshot2.png and b/Screenshot2.png differ
diff --git a/Screenshot3.png b/Screenshot3.png
new file mode 100644
index 0000000..2bcc6fa
Binary files /dev/null and b/Screenshot3.png differ