diff --git a/src/install/InstallComacDB.py b/src/install/InstallComacDB.py
index a05e151..06c634d 100644
--- a/src/install/InstallComacDB.py
+++ b/src/install/InstallComacDB.py
@@ -104,6 +104,9 @@ class InstallComacDb:
         time.sleep(10)
 
     def __remove_pre_service(self):
+        exist = check_service_exist(self.service_name)
+        if not exist:
+            return
         logger.info("清理历史服务")
         stop_command = ["sc", "stop", self.service_name]
         delete_command = ["sc", "delete", self.service_name]
diff --git a/src/install/InstallMariaDB.py b/src/install/InstallMariaDB.py
index 771f1a9..d17f7ff 100644
--- a/src/install/InstallMariaDB.py
+++ b/src/install/InstallMariaDB.py
@@ -30,7 +30,7 @@ class InstallMariaDb:
         self.__init_db_user()
         logger.info("数据库初始化")
         self.__init_db()
-        logger.info("安装完成，10秒后进行数据库服务安装")
+        logger.info("安装完成，10秒自动退出")
         time.sleep(10)
         pass