diff --git a/CommonLibrary/Packer.cs b/CommonLibrary/Packer.cs
index 5df14ff..30bc69b 100644
--- a/CommonLibrary/Packer.cs
+++ b/CommonLibrary/Packer.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
 using System.Linq;
@@ -30,7 +31,9 @@ namespace CommonLibrary
         }
 
         public override void Flush() => insideStream.Flush();
+
         public override long Seek(long offset, SeekOrigin origin) => insideStream.Seek(offset, origin);
+
         public override void SetLength(long value) => insideStream.SetLength(value);
 
         public override int Read(byte[] buffer, int offset, int count)
@@ -116,6 +119,62 @@ namespace CommonLibrary
                 }
             }
         }
+
+        public List<PackList> GetTopLevelItem(string packFileName)
+        {
+            List<PackList> packLists = new List<PackList>();
+
+            using (ZipArchive archive = ZipFile.OpenRead(packFileName))
+            {
+                // 최상위 항목들(폴더/파일명) 추출
+
+                var results = new List<PackList>();
+                var seen = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+
+                foreach (var entry in archive.Entries)
+                {
+                    string path = entry.FullName.Replace('\\', '/');
+                    if (string.IsNullOrEmpty(path)) continue;
+
+                    int firstSlash = path.IndexOf('/');
+
+                    if (firstSlash < 0)
+                    {
+                        // ZIP 루트에 바로 들어있는 항목
+                        if (string.IsNullOrEmpty(entry.Name))
+                        {
+                            // 디렉터리 엔트리
+                            if (seen.Add(path.TrimEnd('/')))
+                                results.Add(new PackList { IsDirectory = true, Name = path.TrimEnd('/') });
+                        }
+                        else
+                        {
+                            // 파일
+                            if (seen.Add(path))
+                                results.Add(new PackList { IsDirectory = false, Name = path });
+                        }
+                    }
+                    else
+                    {
+                        // 하위 경로가 있음 → 최상위는 폴더
+                        string top = path.Substring(0, firstSlash);
+                        if (!string.IsNullOrEmpty(top) && seen.Add(top))
+                        {
+                            results.Add(new PackList { IsDirectory = true, Name = top });
+                        }
+                    }
+                }
+
+                return results;
+            }
+        }
+
+        public struct PackList
+
+        {
+            public bool IsDirectory { get; set; }
+            public string Name { get; set; }
+        }
     }
 
     public class BasicProgress<T> : IProgress<T>
@@ -132,4 +191,4 @@ namespace CommonLibrary
             actionHandler(value);
         }
     }
-}
+}
\ No newline at end of file
diff --git a/Mitria_Minecraft_Launcher/Updater/GameUpdateManager.cs b/Mitria_Minecraft_Launcher/Updater/GameUpdateManager.cs
index 92e44d6..48bb1fb 100644
--- a/Mitria_Minecraft_Launcher/Updater/GameUpdateManager.cs
+++ b/Mitria_Minecraft_Launcher/Updater/GameUpdateManager.cs
@@ -136,17 +136,17 @@ namespace Mitria_Minecraft_Launcher.Updater
                 CommonLibrary.Log
                             .INFO(string.Format("{0}", result == 1 ? "remote is the upper version" : "remote is the lower version"));
 
+
                 bool packageInitialization = true;
 
-                if (thisVersion.Major < remoteVersion.Major ||
-                    (thisVersion.Major == remoteVersion.Major && thisVersion.Minor < remoteVersion.Minor))
+                if (thisVersion.Major < remoteVersion.Major || thisVersion.Minor < remoteVersion.Minor)
                 {
-                    packageInitialization = false;
-                    CommonLibrary.Log.INFO("[Package] update.");
+                    CommonLibrary.Log.INFO("[Package] delete it for update.");
                 }
                 else
                 {
-                    CommonLibrary.Log.INFO("[Package] delete it for update.");
+                    packageInitialization = false;
+                    CommonLibrary.Log.INFO("[Package] update.");
                 }
                 var rootDirectoryInfo = new System.IO.DirectoryInfo(System.IO.Path.GetFullPath(CommonLibrary.Extensions.PathCombineW(Settings.UserLauncherConfig.GameDirectory, Settings.NowProfile.ServerName)));
 
@@ -155,7 +155,7 @@ namespace Mitria_Minecraft_Launcher.Updater
                     rootDirectoryInfo.Create();
                     Log.INFO("[Package] +[D] " + rootDirectoryInfo.FullName);
                 }
-                else
+                else if(packageInitialization)
                 {
                     // 비우기 전에 스크린샷폴더 보존 /screenshots
                     string oldScreenshotsDirectory = CommonLibrary.Extensions.PathCombineW(Settings.UserLauncherConfig.GameDirectory, Settings.NowProfile.ServerName, "screenshots");
@@ -179,6 +179,8 @@ namespace Mitria_Minecraft_Launcher.Updater
                 downloader.DownloadFile(downloadUrl, targetPath);
                 Log.INFO("[Package] Download End");
 
+                
+
                 if (Settings.UserClientVersion.PackageDirectorys != null)
                 {
                     foreach (var item in Settings.UserClientVersion.PackageDirectorys)
diff --git a/Mitria_Minecraft_Updater/Mitria_Minecraft_Updater.csproj b/Mitria_Minecraft_Updater/Mitria_Minecraft_Updater.csproj
index b29c2f7..be4a0fb 100644
--- a/Mitria_Minecraft_Updater/Mitria_Minecraft_Updater.csproj
+++ b/Mitria_Minecraft_Updater/Mitria_Minecraft_Updater.csproj
@@ -2,10 +2,11 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <StartupObject>Mitria_Minecraft_Updater.Program</StartupObject>
     <AssemblyName>mmu</AssemblyName>
     <DebugType>embedded</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
   </PropertyGroup>
 
   <ItemGroup>