diff --git a/RustTools.Core/RustTools.Core.csproj b/RustTools.Core/RustTools.Core.csproj
deleted file mode 100644
index b176693..0000000
--- a/RustTools.Core/RustTools.Core.csproj
+++ /dev/null
@@ -1,17 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <RootNamespace>RustTools.Core</RootNamespace>
-    <Platforms>AnyCPU;x64;x86</Platforms>
-    <Platforms>x86;x64;arm64;AnyCPU</Platforms>
-    <ImplicitUsings>enable</ImplicitUsings>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <Folder Include="Models\" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
-  </ItemGroup>
-</Project>
diff --git a/RustTools/App.xaml.cs b/RustTools/App.xaml.cs
index 3728451..ae37fa7 100644
--- a/RustTools/App.xaml.cs
+++ b/RustTools/App.xaml.cs
@@ -5,8 +5,6 @@ using Microsoft.UI.Xaml;
 
 using RustTools.Activation;
 using RustTools.Contracts.Services;
-using RustTools.Core.Contracts.Services;
-using RustTools.Core.Services;
 using RustTools.Helpers;
 using RustTools.Models;
 using RustTools.Services;
@@ -41,9 +39,9 @@ public partial class App : Application
         return service;
     }
 
-    public static WindowEx MainWindow { get; } = new MainWindow();
 
     public static UIElement? AppTitlebar { get; set; }
+    public static WindowEx MainWindow { get; } = new MainWindow();
 
     public App()
     {
@@ -111,27 +109,4 @@ public partial class App : Application
 
         await App.GetService<IActivationService>().ActivateAsync(args);
     }
-
-    private Mutex mutex;
-    private void InitializeMutex()
-    {
-        // Mutex name should be unique for your application.
-        string mutexName = "Global\\MyWinUIAppMutex";
-        bool createdNew;
-
-        // Try to create the Mutex. If it fails, another instance is already running.
-        mutex = new Mutex(true, mutexName, out createdNew);
-        if (!createdNew)
-        {
-            // Another instance is already running.
-            Environment.Exit(0); // Exit the current application.
-        }
-
-        // Clean up the Mutex when the application exits.
-        //Current.Exiting += (sender, args) =>
-        //{
-        //    mutex.Close();
-        //    mutex.Dispose();
-        //};
-    }
 }
diff --git a/RustTools.Core/Contracts/Services/IFileService.cs b/RustTools/Contracts/Services/IFileService.cs
similarity index 81%
rename from RustTools.Core/Contracts/Services/IFileService.cs
rename to RustTools/Contracts/Services/IFileService.cs
index 5a21b65..429cfda 100644
--- a/RustTools.Core/Contracts/Services/IFileService.cs
+++ b/RustTools/Contracts/Services/IFileService.cs
@@ -1,4 +1,4 @@
-namespace RustTools.Core.Contracts.Services;
+namespace RustTools.Contracts.Services;
 
 public interface IFileService
 {
diff --git a/RustTools.Core/Helpers/Json.cs b/RustTools/Helpers/Json.cs
similarity index 93%
rename from RustTools.Core/Helpers/Json.cs
rename to RustTools/Helpers/Json.cs
index 6b573f4..2090108 100644
--- a/RustTools.Core/Helpers/Json.cs
+++ b/RustTools/Helpers/Json.cs
@@ -1,6 +1,6 @@
 using Newtonsoft.Json;
 
-namespace RustTools.Core.Helpers;
+namespace RustTools.Helpers;
 
 public static class Json
 {
diff --git a/RustTools/Helpers/SettingsStorageExtensions.cs b/RustTools/Helpers/SettingsStorageExtensions.cs
index c07609d..5d37f18 100644
--- a/RustTools/Helpers/SettingsStorageExtensions.cs
+++ b/RustTools/Helpers/SettingsStorageExtensions.cs
@@ -1,4 +1,4 @@
-using RustTools.Core.Helpers;
+using RustTools.Helpers;
 
 using Windows.Storage;
 using Windows.Storage.Streams;
diff --git a/RustTools/RustTools.csproj b/RustTools/RustTools.csproj
index 5d5ce91..ebd2834 100644
--- a/RustTools/RustTools.csproj
+++ b/RustTools/RustTools.csproj
@@ -44,9 +44,6 @@
     <PackageReference Include="WinUIEx" Version="2.3.2" />
   </ItemGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\RustTools.Core\RustTools.Core.csproj" />
-  </ItemGroup>
   <ItemGroup>
     <None Update="appsettings.json">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
@@ -88,8 +85,4 @@
     <HasPackageAndPublishMenu>true</HasPackageAndPublishMenu>
   </PropertyGroup>
   
-  <ItemGroup>
-    <Content Remove="Assets\image\image_24dp_E8EAED_FILL0_wght400_GRAD0_opsz24 (1).svg" />
-    <Content Remove="Assets\创意工坊.svg" />
-  </ItemGroup>
 </Project>
diff --git a/RustTools.Core/Services/FileService.cs b/RustTools/Services/FileService.cs
similarity index 92%
rename from RustTools.Core/Services/FileService.cs
rename to RustTools/Services/FileService.cs
index 94ff583..7c8a6b9 100644
--- a/RustTools.Core/Services/FileService.cs
+++ b/RustTools/Services/FileService.cs
@@ -2,9 +2,9 @@
 
 using Newtonsoft.Json;
 
-using RustTools.Core.Contracts.Services;
+using RustTools.Contracts.Services;
 
-namespace RustTools.Core.Services;
+namespace RustTools.Services;
 
 public class FileService : IFileService
 {
diff --git a/RustTools/Services/LocalSettingsService.cs b/RustTools/Services/LocalSettingsService.cs
index 066a76f..49effd9 100644
--- a/RustTools/Services/LocalSettingsService.cs
+++ b/RustTools/Services/LocalSettingsService.cs
@@ -1,8 +1,6 @@
 using Microsoft.Extensions.Options;
 
 using RustTools.Contracts.Services;
-using RustTools.Core.Contracts.Services;
-using RustTools.Core.Helpers;
 using RustTools.Helpers;
 using RustTools.Models;
 
diff --git a/RustTools/WindowUI/ModulePage.xaml.cs b/RustTools/WindowUI/ModulePage.xaml.cs
index ff8a8fb..e2e2e54 100644
--- a/RustTools/WindowUI/ModulePage.xaml.cs
+++ b/RustTools/WindowUI/ModulePage.xaml.cs
@@ -15,7 +15,7 @@ using Microsoft.UI.Xaml.Navigation;
 using RustTools.muqing;
 using Newtonsoft.Json;
 using RustTools.DataList;
-using RustTools.Core.Helpers;
+using RustTools.Helpers;
 using System.Collections.ObjectModel;
 // To learn more about WinUI, the WinUI project structure,
 // and more about our project templates, see: http://aka.ms/winui-project-info.