diff --git a/DM_Weight/App.config b/DM_Weight/App.config
index a5d4178..3cbbe58 100644
--- a/DM_Weight/App.config
+++ b/DM_Weight/App.config
@@ -37,7 +37,7 @@
 		<!-- 按处方还药或者按取药记录还药 1:处方（ReturnDrugWindow2）2：药品（ReturnDrugWindow）-->
 		<add key="returnDrugMode" value="2" />
 		<!-- 自动退出时间，单位秒，为0时不自动退出 -->
-		<add key="autoExit" value="0"/>
+		<add key="autoExit" value="10"/>
 		
 		<!-- 无操作退出录像时间，单位秒，为0时不退出录像 -->
 		<add key="stopRecord" value="0"/>
diff --git a/DM_Weight/ViewModels/HomeWindowViewModel.cs b/DM_Weight/ViewModels/HomeWindowViewModel.cs
index 5862565..30bf3c2 100644
--- a/DM_Weight/ViewModels/HomeWindowViewModel.cs
+++ b/DM_Weight/ViewModels/HomeWindowViewModel.cs
@@ -1,4 +1,13 @@
-using log4net;
+using DM_Weight.Common;
+using DM_Weight.Models;
+using DM_Weight.msg;
+using DM_Weight.Port;
+using DM_Weight.util;
+using DM_Weight.Views;
+using log4net;
+using log4net.Repository.Hierarchy;
+using MaterialDesignThemes.Wpf;
+using Newtonsoft.Json.Linq;
 using Prism.Commands;
 using Prism.Events;
 using Prism.Mvvm;
@@ -10,22 +19,14 @@ using System.Collections.Generic;
 using System.Configuration;
 using System.Linq;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
+using System.Timers;
 using System.Windows;
 using System.Windows.Controls;
-using DM_Weight.Models;
-using DM_Weight.Port;
-using DM_Weight.util;
-using DM_Weight.Views;
-using System.Timers;
-using Unity;
-using System.Windows.Threading;
-using Newtonsoft.Json.Linq;
-using DM_Weight.msg;
-using System.Threading;
-using DM_Weight.Common;
 using System.Windows.Media;
-using MaterialDesignThemes.Wpf;
+using System.Windows.Threading;
+using Unity;
 
 namespace DM_Weight.ViewModels
 {
@@ -571,8 +572,9 @@ namespace DM_Weight.ViewModels
             int autoExit = Convert.ToInt32(ConfigurationManager.AppSettings["autoExit"] ?? "0");
             if (autoExit > 0)
             {
+                logger.Info("启动自动退出检测");
                 //int interval = autoExit * 1000;
-                new PromiseUtil<int>().taskAsyncLoop(1000, 0, async (options, next, stop) =>
+                new PromiseUtil<int>().taskAsyncLoop(10, 0, async (options, next, stop) =>
                 {
                     try
                     {
@@ -590,8 +592,10 @@ namespace DM_Weight.ViewModels
                                 stop();
                                 System.Windows.Application.Current.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Send, new Action(() =>
                                 {
-
-                                    DialogHost.Close("RootDialog");
+                                    if (DialogHost.IsDialogOpen("RootDialog"))
+                                    {
+                                        DialogHost.Close("RootDialog");
+                                    } 
                                     _regionManager.RequestNavigate("MainRegion", "LoginWindow");
                                 }));
                                 //});
@@ -601,10 +605,12 @@ namespace DM_Weight.ViewModels
                             {
                                 if (Operator == null)
                                 {
+                                    logger.Info("自动退出检测已停止");
                                     stop();
                                 }
                                 else
                                 {
+                                    logger.Info($"停止操作时间{_portUtil.dateTime}，自动退出时间{autoExit}，运算结果{(DateTime.Now - _portUtil.dateTime).TotalSeconds}，用户上次使用系统到现在的时间间隔{CheckComputerFreeState.GetLastInputTime()}");
                                     next();
                                 }
                             }
diff --git a/DM_Weight/util/CheckComputerFreeState.cs b/DM_Weight/util/CheckComputerFreeState.cs
index 1c3f789..6ec9b0d 100644
--- a/DM_Weight/util/CheckComputerFreeState.cs
+++ b/DM_Weight/util/CheckComputerFreeState.cs
@@ -44,9 +44,23 @@ namespace DM_Weight.util
             }
             else
             {
-                var count = (Environment.TickCount & Int32.MaxValue) - (long)vLastInputInfo.dwTime;
-                var icount = count / 1000;
-                return icount;
+                //var count = (Environment.TickCount & Int32.MaxValue) - (long)vLastInputInfo.dwTime;
+                //var icount = count / 1000;
+                //return icount;
+
+                // 使用 64 位 TickCount 避免回绕问题
+                long currentTick = Environment.TickCount64;
+                long lastInputTick = vLastInputInfo.dwTime;
+
+                // 处理可能的回绕（虽然使用 64 位后极不可能发生）
+                if (currentTick < lastInputTick)
+                {
+                    // 发生了回绕，调整计算
+                    lastInputTick -= uint.MaxValue + 1L;
+                }
+
+                long elapsedMilliseconds = currentTick - lastInputTick;
+                return Math.Max(0, elapsedMilliseconds / 1000);
             }
         }
     }