diff --git a/STranslate.Util/CommonUtil.cs b/STranslate.Util/CommonUtil.cs
index 463ae214..27b39cd6 100644
--- a/STranslate.Util/CommonUtil.cs
+++ b/STranslate.Util/CommonUtil.cs
@@ -4,6 +4,7 @@
 using System.Diagnostics;
 using System.Linq;
 using System.Runtime.InteropServices;
+using System.Security.Principal;
 using System.Text;
 using System.Windows;
 using System.Windows.Controls;
@@ -398,6 +399,18 @@ public static System.Windows.Point GetMousePositionWindowsForms()
             return new System.Windows.Point(ms.X / dpiScale, ms.Y / dpiScale);
         }
 
+        /// <summary>
+        /// 是否为管理员权限
+        /// </summary>
+        /// <returns></returns>
+        public static bool IsUserAdministrator()
+        {
+            WindowsIdentity identity = WindowsIdentity.GetCurrent();
+            WindowsPrincipal principal = new(identity);
+
+            return principal.IsInRole(WindowsBuiltInRole.Administrator);
+        }
+
         #endregion Other
     }
 }
diff --git a/STranslate/App.xaml.cs b/STranslate/App.xaml.cs
index f65c6eb6..b1ae88c8 100644
--- a/STranslate/App.xaml.cs
+++ b/STranslate/App.xaml.cs
@@ -7,7 +7,6 @@
 using System.Diagnostics;
 using System.IO;
 using System.Reflection;
-using System.Security.Principal;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Threading;
@@ -76,28 +75,13 @@ protected override void OnExit(ExitEventArgs e)
 
         private bool NeedAdministrator()
         {
-            // 初始化管理员缓存
-            Current.Properties["admin"] = false;
-
             // 加载配置
             var isRole = Singleton<ConfigHelper>.Instance.CurrentConfig?.NeedAdministrator ?? false;
 
             if (!isRole)
                 return false;
 
-            // 更新管理员缓存
-            bool role = IsUserAdministrator();
-            Current.Properties["admin"] = role;
-
-            return !role;
-        }
-
-        private bool IsUserAdministrator()
-        {
-            WindowsIdentity identity = WindowsIdentity.GetCurrent();
-            WindowsPrincipal principal = new WindowsPrincipal(identity);
-
-            return principal.IsInRole(WindowsBuiltInRole.Administrator);
+            return !CommonUtil.IsUserAdministrator();
         }
 
         private bool TryRunAsAdministrator()
diff --git a/STranslate/ViewModels/NotifyIconViewModel.cs b/STranslate/ViewModels/NotifyIconViewModel.cs
index 743f2a59..4ad82752 100644
--- a/STranslate/ViewModels/NotifyIconViewModel.cs
+++ b/STranslate/ViewModels/NotifyIconViewModel.cs
@@ -51,7 +51,7 @@ public NotifyIconViewModel()
 
         public void UpdateToolTip(string msg = "")
         {
-            _ = bool.TryParse(Application.Current.Properties["admin"]?.ToString(), out bool isAdmin);
+            bool isAdmin = CommonUtil.IsUserAdministrator();
 
             string toolTipFormat = isAdmin ? "STranslate {0}\r\n[Administrator] #\r\n{1}" : "STranslate {0} #\r\n{1}";
 
diff --git a/STranslate/Views/MainView.xaml.cs b/STranslate/Views/MainView.xaml.cs
index d3cedfa9..9421523d 100644
--- a/STranslate/Views/MainView.xaml.cs
+++ b/STranslate/Views/MainView.xaml.cs
@@ -96,7 +96,7 @@ protected override void OnSourceInitialized(EventArgs e)
             {
                 Hide();
 
-                _ = bool.TryParse(Application.Current.Properties["admin"]?.ToString(), out bool isAdmin);
+                bool isAdmin = CommonUtil.IsUserAdministrator();
 
                 string toolTipFormat = isAdmin ? "STranslate[Admin] {0} started" : "STranslate {0} started";