diff --git a/source/core/managers/offline_mode_manager.py b/source/core/managers/offline_mode_manager.py
index 3d6020a..faa74b4 100644
--- a/source/core/managers/offline_mode_manager.py
+++ b/source/core/managers/offline_mode_manager.py
@@ -822,35 +822,6 @@ class OfflineModeManager:
             # 添加到安装任务列表
             install_tasks.append((patch_file, game_folder, game_version, _7z_path, plugin_path))
         
-        # 检查是否有未找到离线补丁文件的游戏
-        if self.missing_offline_patches:
-            if debug_mode:
-                logger.debug(f"DEBUG: 有未找到离线补丁文件的游戏: {self.missing_offline_patches}")
-                
-            # 询问用户是否切换到在线模式
-            msg_box = msgbox_frame(
-                f"离线安装信息 - {self.app_name}",
-                f"\n本地未发现对应离线文件，是否切换为在线模式安装？\n\n以下游戏未找到对应的离线补丁文件：\n\n{chr(10).join(self.missing_offline_patches)}\n",
-                QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No
-            )
-            result = msg_box.exec()
-                
-            if result == QMessageBox.StandardButton.Yes:
-                if debug_mode:
-                    logger.debug("DEBUG: 用户选择切换到在线模式")
-                    
-                # 切换到在线模式
-                if hasattr(self.main_window, 'ui_manager'):
-                    self.main_window.ui_manager.switch_work_mode("online")
-                    
-                    # 直接启动下载流程
-                    self.main_window.setEnabled(True)
-                    # 保存当前选择的游戏列表，以便在线模式使用
-                    missing_games = self.missing_offline_patches.copy()
-                    # 启动下载流程
-                    QTimer.singleShot(500, lambda: self._start_online_download(missing_games))
-                    return True
-                    
         # 开始执行第一个安装任务
         if install_tasks:
             if debug_mode:
@@ -923,8 +894,8 @@ class OfflineModeManager:
                 else:
                     installed_msg = ""
                 
-                # 使用QTimer延迟显示询问对话框，确保安装结果窗口先显示并关闭
-                QTimer.singleShot(500, lambda: self._show_missing_patches_dialog(installed_msg))
+                # 在安装完成后询问用户是否切换到在线模式
+                self._show_missing_patches_dialog(installed_msg)
             else:
                 # 恢复UI状态
                 self.main_window.setEnabled(True)
diff --git a/source/core/managers/ui_manager.py b/source/core/managers/ui_manager.py
index e37acc7..4bb84fc 100644
--- a/source/core/managers/ui_manager.py
+++ b/source/core/managers/ui_manager.py
@@ -1066,7 +1066,8 @@ class UIManager:
         
         self.loading_dialog.show()
         # force UI update
-        QMessageBox.QApplication.processEvents()
+        from PySide6.QtWidgets import QApplication
+        QApplication.processEvents()
 
     def hide_loading_dialog(self):
         """隐藏并销毁加载对话框."""
diff --git a/source/main_window.py b/source/main_window.py
index 04c2183..5be9144 100644
--- a/source/main_window.py
+++ b/source/main_window.py
@@ -85,6 +85,8 @@ class MainWindow(QMainWindow):
         self.progress_window = None
         self.pre_hash_thread = None
         self.hash_thread = None
+        self.installed_status = {}  
+        self.hash_msg_box = None    
         
         # 验证关键资源
         self._verify_resources()
@@ -468,8 +470,9 @@ class MainWindow(QMainWindow):
 
         self.download_manager.graceful_stop_threads(threads_to_stop)
 
-        self.download_manager.hosts_manager.restore()
-        self.download_manager.hosts_manager.check_and_clean_all_entries()
+        # 移除此处的hosts操作
+        # self.download_manager.hosts_manager.restore()
+        # self.download_manager.hosts_manager.check_and_clean_all_entries()
         self.debug_manager.stop_logging()
 
         if not force_exit:
@@ -482,6 +485,14 @@ class MainWindow(QMainWindow):
                 if event:
                     event.ignore()
                 return
+            
+            # 用户确认退出后，再执行hosts相关操作
+            self.download_manager.hosts_manager.restore()
+            self.download_manager.hosts_manager.check_and_clean_all_entries()
+        else:
+            # 强制退出时，也需执行hosts相关操作
+            self.download_manager.hosts_manager.restore()
+            self.download_manager.hosts_manager.check_and_clean_all_entries()
 
         if event:
             event.accept()
@@ -710,6 +721,29 @@ class MainWindow(QMainWindow):
                 logger.error(f"关闭哈希校验窗口时发生错误: {e}")
             self.hash_msg_box = None
 
+    def create_extraction_progress_window(self):
+        """创建一个用于显示解压进度的窗口
+        
+        Returns:
+            QDialog: 配置好的解压进度窗口实例
+        """
+        return self.ui_manager.create_progress_window("解压进度", "正在准备解压...")
+
+    def create_extraction_thread(self, patch_file, game_folder, plugin_path, game_version):
+        """创建一个解压线程
+        
+        Args:
+            patch_file: 补丁文件路径
+            game_folder: 游戏目录路径
+            plugin_path: 插件路径
+            game_version: 游戏版本
+            
+        Returns:
+            ExtractionThread: 配置好的解压线程实例
+        """
+        from workers.extraction_thread import ExtractionThread
+        return ExtractionThread(patch_file, game_folder, plugin_path, game_version, self)
+
 
 
  
\ No newline at end of file