diff --git a/App.config b/App.config
index 36d14a7..319ab1a 100644
--- a/App.config
+++ b/App.config
@@ -1,17 +1,17 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
     </startup>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
-        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
-        <bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0"/>
+        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
-        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral"/>
-        <bindingRedirect oldVersion="0.0.0.0-4.0.3.0" newVersion="4.0.3.0"/>
+        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.3.0" newVersion="4.0.3.0" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
diff --git a/FastbootEnhance.csproj b/FastbootEnhance.csproj
index 1cc772c..93e42d0 100644
--- a/FastbootEnhance.csproj
+++ b/FastbootEnhance.csproj
@@ -8,7 +8,7 @@
     <OutputType>WinExe</OutputType>
     <RootNamespace>FastbootEnhance</RootNamespace>
     <AssemblyName>FastbootEnhance</AssemblyName>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
@@ -90,11 +90,16 @@
     <Reference Include="Google.Protobuf, Version=3.17.3.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
       <HintPath>packages\Google.Protobuf.3.17.3\lib\net45\Google.Protobuf.dll</HintPath>
     </Reference>
+    <Reference Include="Ookii.Dialogs.Wpf, Version=5.0.0.0, Culture=neutral, PublicKeyToken=66aa232afad40158, processorArchitecture=MSIL">
+      <HintPath>packages\Ookii.Dialogs.Wpf.5.0.1\lib\net462\Ookii.Dialogs.Wpf.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>packages\System.Buffers.4.5.1\lib\netstandard1.1\System.Buffers.dll</HintPath>
     </Reference>
     <Reference Include="System.Data" />
+    <Reference Include="System.Design" />
+    <Reference Include="System.Drawing" />
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
       <HintPath>packages\System.Memory.4.5.4\lib\netstandard1.1\System.Memory.dll</HintPath>
     </Reference>
@@ -102,6 +107,7 @@
     <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>packages\System.Runtime.CompilerServices.Unsafe.5.0.0\lib\net45\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
     </Reference>
+    <Reference Include="System.Security" />
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
     <Reference Include="Microsoft.CSharp" />
@@ -138,7 +144,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.ja-JP.resx</DependentUpon>
     </Compile>
-	<Compile Include="Properties\Resources.ko-KR.Designer.cs">
+    <Compile Include="Properties\Resources.ko-KR.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.ko-KR.resx</DependentUpon>
@@ -149,6 +155,7 @@
       <DesignTime>True</DesignTime>
     </Compile>
     <Compile Include="UpdateMetadata.cs" />
+    <Compile Include="Var.cs" />
     <Page Include="FastbootActionWindow.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -190,18 +197,22 @@
     <EmbeddedResource Include="Properties\Resources.ja-JP.resx">
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.ja-JP.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
-	<EmbeddedResource Include="Properties\Resources.ko-KR.resx">
+    <EmbeddedResource Include="Properties\Resources.ko-KR.resx">
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.ko-KR.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.zh-CN.resx">
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.zh-CN.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
     </EmbeddedResource>
     <None Include="packages.config" />
     <None Include="Properties\Settings.settings">
@@ -232,4 +243,4 @@
     </Content>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-</Project>
+</Project>
\ No newline at end of file
diff --git a/FastbootUI.cs b/FastbootUI.cs
index 8047097..226da4e 100644
--- a/FastbootUI.cs
+++ b/FastbootUI.cs
@@ -1,9 +1,14 @@
 using ChromeosUpdateEngine;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
+using System.Security.Cryptography.X509Certificates;
 using System.Threading;
 using System.Windows;
+using Ookii.Dialogs.Wpf;
+using System.Windows.Forms;
+using MessageBox = System.Windows.MessageBox;
 
 namespace FastbootEnhance
 {
@@ -13,6 +18,7 @@ class FastbootUI
         static List<fastboot_devices_row> devices;
         static string cur_serial;
         static FastbootData fastbootData;
+        public Var var1;
 
         static Logger logger;
         static void appendLog(string logs)
@@ -715,6 +721,31 @@ public static void init()
                             MessageBox.Show(Properties.Resources.payload_unsupported_format + "\n" + exc.Message);
                             return;
                         }
+                        string partition_list = "";
+                        foreach (PartitionUpdate partitionUpdate in payload.manifest.Partitions)
+                        {
+                            partition_list += partitionUpdate.PartitionName + " ";
+                        }
+                        MessageBox.Show(partition_list);
+                        MessageBox.Show(Var.payload_extracted_newvar.ToString());
+                        if (Var.payload_extracted_newvar == true)
+                        {
+                            System.Windows.Forms.FolderBrowserDialog dialog = new System.Windows.Forms.FolderBrowserDialog();
+                            dialog.Description = "请选择一个目录作为路径：";
+                            dialog.ShowNewFolderButton = true;
+                            dialog.RootFolder = Environment.SpecialFolder.MyComputer;
+                            System.Windows.Forms.DialogResult result = dialog.ShowDialog();
+                            Var.pe_path=dialog.SelectedPath;
+
+                            /*Ookii.Dialogs.Wpf.VistaFolderBrowserDialog folderBrowser = new Ookii.Dialogs.Wpf.VistaFolderBrowserDialog();
+                            folderBrowser.Description = "请选择img所在的目录";
+                            Var.pe_path = folderBrowser.SelectedPath;*/
+                            MessageBox.Show(Var.pe_path);
+
+                        }
+
+                        //Process.GetCurrentProcess().Kill();
+
 
                         //Ensure that all partitions are there
                         string unknown_partition_list = "";
@@ -739,58 +770,88 @@ public static void init()
                         }
 
                         Directory.CreateDirectory(PAYLOAD_TMP);
+                        MessageBox.Show(PAYLOAD_TMP);
+                        
 
                         action_lock();
                         new Thread(new ThreadStart(delegate
                         {
                             int count_full = payload.manifest.Partitions.Count * 2;
                             int count = 0;
-                            foreach (PartitionUpdate partitionUpdate in payload.manifest.Partitions)
+                            if (Var.payload_extracted_newvar == false)
                             {
-                                appendLog("Extracting " + partitionUpdate.PartitionName);
-                                Payload.PayloadExtractionException e = payload.extract(partitionUpdate.PartitionName,
-                                    PAYLOAD_TMP, false, false);
-
-                                if (e != null)
+                                Process.GetCurrentProcess().Kill();
+                                foreach (PartitionUpdate partitionUpdate in payload.manifest.Partitions)
                                 {
-                                    MessageBox.Show(e.Message);
-                                    MainWindow.THIS.Dispatcher.Invoke(new Action(delegate
+                                    appendLog("Extracting " + partitionUpdate.PartitionName);
+                                    Payload.PayloadExtractionException e = payload.extract(partitionUpdate.PartitionName,
+                                        PAYLOAD_TMP, false, false);
+
+                                    if (e != null)
+                                    {
+                                        MessageBox.Show(e.Message);
+                                        MainWindow.THIS.Dispatcher.Invoke(new Action(delegate
+                                        {
+                                            action_unlock();
+                                        }));
+                                        payload.Dispose();
+                                        return;
+                                    }
+
+                                    appendLog("Extracted " + partitionUpdate.PartitionName);
+
+                                    MainWindow.THIS.Dispatcher.BeginInvoke(new Action(delegate
                                     {
-                                        action_unlock();
+                                        MainWindow.THIS.fastboot_progress_bar.Value = 100 * ++count / count_full;
+                                        Helper.TaskbarItemHelper.update(100 * count / count_full);
                                     }));
-                                    payload.Dispose();
-                                    return;
                                 }
+                                foreach (PartitionUpdate partitionUpdate in payload.manifest.Partitions)
+                                {
+                                    using (Fastboot fastboot = new Fastboot
+                                    (cur_serial, "flash \"" + partitionUpdate.PartitionName + "\" \"" + PAYLOAD_TMP + "\\" + partitionUpdate.PartitionName + ".img\""))
+                                    {
+                                        while (true)
+                                        {
+                                            string err = fastboot.stderr.ReadLine();
 
-                                appendLog("Extracted " + partitionUpdate.PartitionName);
+                                            if (err == null)
+                                                break;
 
-                                MainWindow.THIS.Dispatcher.BeginInvoke(new Action(delegate
-                                {
-                                    MainWindow.THIS.fastboot_progress_bar.Value = 100 * ++count / count_full;
-                                    Helper.TaskbarItemHelper.update(100 * count / count_full);
-                                }));
-                            }
+                                            appendLog(err);
+                                        }
 
-                            foreach (PartitionUpdate partitionUpdate in payload.manifest.Partitions)
+                                        MainWindow.THIS.Dispatcher.BeginInvoke(new Action(delegate
+                                        {
+                                            MainWindow.THIS.fastboot_progress_bar.Value = 100 * ++count / count_full;
+                                            Helper.TaskbarItemHelper.update(100 * count / count_full);
+                                        }));
+                                    }
+                                }
+                            }
+                            else
                             {
-                                using (Fastboot fastboot = new Fastboot
-                                (cur_serial, "flash \"" + partitionUpdate.PartitionName + "\" \"" + PAYLOAD_TMP + "\\" + partitionUpdate.PartitionName + ".img\""))
+                                foreach (PartitionUpdate partitionUpdate in payload.manifest.Partitions)
                                 {
-                                    while (true)
+                                    using (Fastboot fastboot = new Fastboot
+                                    (cur_serial, "flash \"" + partitionUpdate.PartitionName + "\" \"" + Var.pe_path + "\\" + partitionUpdate.PartitionName + ".img\""))
                                     {
-                                        string err = fastboot.stderr.ReadLine();
+                                        while (true)
+                                        {
+                                            string err = fastboot.stderr.ReadLine();
 
-                                        if (err == null)
-                                            break;
+                                            if (err == null)
+                                                break;
 
-                                        appendLog(err);
-                                    }
+                                            appendLog(err);
+                                        }
 
-                                    MainWindow.THIS.Dispatcher.BeginInvoke(new Action(delegate
-                                    {
-                                        MainWindow.THIS.fastboot_progress_bar.Value = 100 * ++count / count_full;
-                                        Helper.TaskbarItemHelper.update(100 * count / count_full);
-                                    }));
+                                        MainWindow.THIS.Dispatcher.BeginInvoke(new Action(delegate
+                                        {
+                                            MainWindow.THIS.fastboot_progress_bar.Value = 100 * ++count / count_full;
+                                            Helper.TaskbarItemHelper.update(100 * count / count_full);
+                                        }));
+                                    }
                                 }
                             }
 
diff --git a/MainWindow.xaml b/MainWindow.xaml
index 1137e88..b7030ef 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -134,7 +134,7 @@
                                 <Button x:Name="fastboot_ab_switch" Margin="5,5,5,5" Content="切换分区" Grid.Column="1"/>
                                 <Button x:Name="fastboot_flash_payload" Margin="5,5,5,5" Content="{x:Static props:Resources.fastboot_flash_payload}" Grid.Column="2"/>
                                 <Button x:Name="fastboot_cancel_update" Margin="5,5,5,5" Content="{x:Static props:Resources.fastboot_cancel_update}" Grid.Column="3"/>
-                                
+
                             </Grid>
                             <Grid Grid.Row="1">
                                 <Grid.ColumnDefinitions>
@@ -144,9 +144,10 @@
                                     <ColumnDefinition></ColumnDefinition>
                                 </Grid.ColumnDefinitions>
                                 <Label VerticalAlignment="Center" x:Name="fastboot_cur_device" Content="{x:Static props:Resources.fastboot_current_device}" Grid.Column="0"/>
-                                <Button x:Name="fastboot_remove" Margin="5 5 5 5" Content="{x:Static props:Resources.fastboot_remove_device}" Grid.Column="1"/>
-                                <Button x:Name="fastboot_reboot_system" Margin="5 5 5 5" Content="{x:Static props:Resources.fastboot_reboot_system}" Grid.Column="2"/>
+                                <Button x:Name="fastboot_remove" Margin="4,5,72,5" Content="{x:Static props:Resources.fastboot_remove_device}" Grid.Column="2"/>
+                                <Button x:Name="fastboot_reboot_system" Margin="76,5,143,5" Content="{x:Static props:Resources.fastboot_reboot_system}" Grid.Column="2" Grid.ColumnSpan="2"/>
                                 <Button x:Name="fastboot_reboot_recovery" Margin="5 5 5 5" Content="{x:Static props:Resources.fastboot_reboot_recovery}" Grid.Column="3"/>
+                                <CheckBox Grid.Column="1" Content="已解压payload" HorizontalAlignment="Left" Margin="31,0,0,0" VerticalAlignment="Center" x:Name="payload_extracted_new" Checked="payload_extracted_Checked" Unchecked="payload_extracted_UnChecked"/>
                             </Grid>
                         </Grid>
                     </Grid>
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index c82a120..06ee948 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -11,6 +11,7 @@ namespace FastbootEnhance
     public partial class MainWindow : Window
     {
         public static MainWindow THIS;
+        public bool payloadextracted = false;
         const string version = "1.4.0";
         public MainWindow()
         {
@@ -75,5 +76,16 @@ private void OSS_Click(object sender, RoutedEventArgs e)
         {
             Process.Start("https://github.com/libxzr/FastbootEnhance");
         }
+
+        private void payload_extracted_Checked(object sender, RoutedEventArgs e)
+        {
+            Var.payload_extracted_newvar = true;
+            MessageBox.Show(Var.payload_extracted_newvar.ToString());
+        }
+        private void payload_extracted_UnChecked(object sender, RoutedEventArgs e)
+        {
+            Var.payload_extracted_newvar = false;
+            MessageBox.Show(Var.payload_extracted_newvar.ToString());
+        }
     }
 }
diff --git a/Properties/Resources.ko-KR.Designer.cs b/Properties/Resources.ko-KR.Designer.cs
index 5f28270..e69de29 100644
--- a/Properties/Resources.ko-KR.Designer.cs
+++ b/Properties/Resources.ko-KR.Designer.cs
@@ -1 +0,0 @@
-
\ No newline at end of file
diff --git a/Properties/Settings.Designer.cs b/Properties/Settings.Designer.cs
index b4691a2..675d2a7 100644
--- a/Properties/Settings.Designer.cs
+++ b/Properties/Settings.Designer.cs
@@ -12,7 +12,7 @@ namespace FastbootEnhance.Properties {
     
     
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.3.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.6.0.0")]
     internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
         
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
diff --git a/Var.cs b/Var.cs
new file mode 100644
index 0000000..1da30cc
--- /dev/null
+++ b/Var.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FastbootEnhance
+{
+    internal class Var
+    {
+        public static bool payload_extracted_newvar = false;
+        public static string pe_path;
+    }
+}
diff --git a/packages.config b/packages.config
index 6b7b470..69c4028 100644
--- a/packages.config
+++ b/packages.config
@@ -2,8 +2,9 @@
 <packages>
   <package id="DotNetZip" version="1.15.0" targetFramework="net45" />
   <package id="Google.Protobuf" version="3.17.3" targetFramework="net45" />
-  <package id="System.Buffers" version="4.5.1" targetFramework="net45" />
-  <package id="System.Memory" version="4.5.4" targetFramework="net45" />
-  <package id="System.Runtime.CompilerServices.Unsafe" version="5.0.0" targetFramework="net45" />
+  <package id="Ookii.Dialogs.Wpf" version="5.0.1" targetFramework="net472" />
+  <package id="System.Buffers" version="4.5.1" targetFramework="net45" requireReinstallation="true" />
+  <package id="System.Memory" version="4.5.4" targetFramework="net45" requireReinstallation="true" />
+  <package id="System.Runtime.CompilerServices.Unsafe" version="5.0.0" targetFramework="net45" requireReinstallation="true" />
   <package id="XZ.NET" version="2.0.0" targetFramework="net45" />
 </packages>
\ No newline at end of file