diff --git a/src/c#/GeneralUpdate.Client/MySample.cs b/src/c#/GeneralUpdate.Client/MySample.cs
index d45be174..64fc8ab7 100644
--- a/src/c#/GeneralUpdate.Client/MySample.cs
+++ b/src/c#/GeneralUpdate.Client/MySample.cs
@@ -19,7 +19,7 @@ internal class MySample
     {
         #region 推送功能
 
-        private const string baseUrl = @"http://127.0.0.1:5001";
+        private const string baseUrl = @"http://localhost:5051";
         private const string hubName = "versionhub";
 
         internal MySample()
@@ -113,7 +113,7 @@ private Configinfo GetWindowsConfigInfo()
             //该对象用于主程序客户端与更新组件进程之间交互用的对象
             var config = new Configinfo();
             //本机的客户端程序应用地址
-            config.InstallPath = @"F:\test\Run";
+            config.InstallPath = @"D:\packet\source";
             //更新公告网页
             config.UpdateLogUrl = "https://www.baidu.com/";
             //客户端当前版本号
@@ -125,9 +125,9 @@ private Configinfo GetWindowsConfigInfo()
             //更新组件更新包下载地址
             config.UpdateUrl = $"{baseUrl}/versions/{config.AppType}/{config.ClientVersion}/{config.AppSecretKey}";
             //更新程序exe名称
-            config.AppName = "AutoUpdate.Core";
+            config.AppName = "GeneralUpdate.Core";
             //主程序客户端exe名称
-            config.MainAppName = "AutoUpdate.ClientCore";
+            config.MainAppName = "GeneralUpdate.ClientCore";
             //主程序信息
             var mainVersion = "1.1.1.1";
             //主程序客户端更新包下载地址
diff --git a/src/c#/GeneralUpdate.ClientCore/GeneralClientBootstrap.cs b/src/c#/GeneralUpdate.ClientCore/GeneralClientBootstrap.cs
index aa92529c..d5d74d58 100644
--- a/src/c#/GeneralUpdate.ClientCore/GeneralClientBootstrap.cs
+++ b/src/c#/GeneralUpdate.ClientCore/GeneralClientBootstrap.cs
@@ -255,7 +255,7 @@ private void ClearEnvironmentVariable()
         {
             try
             {
-                Environment.SetEnvironmentVariable("ProcessBase64", null, EnvironmentVariableTarget.Machine);
+                Environment.SetEnvironmentVariable("ProcessBase64", null, EnvironmentVariableTarget.User);
             }
             catch (SecurityException ex)
             {
diff --git a/src/c#/GeneralUpdate.Core/Exceptions/CustomException/GeneralUpdateException.cs b/src/c#/GeneralUpdate.Core/Exceptions/CustomException/GeneralUpdateException.cs
index 405337dc..258fc84c 100644
--- a/src/c#/GeneralUpdate.Core/Exceptions/CustomException/GeneralUpdateException.cs
+++ b/src/c#/GeneralUpdate.Core/Exceptions/CustomException/GeneralUpdateException.cs
@@ -15,8 +15,7 @@ public sealed class GeneralUpdateException<TExceptionArgs> : Exception, ISeriali
         private const String c_args = "Args";
         private readonly TExceptionArgs m_args;
 
-        public TExceptionArgs Args
-        { get { return m_args; } }
+        public TExceptionArgs Args=> m_args;
 
         public GeneralUpdateException(String message = null, Exception innerException = null) : this(null, message, innerException)
         {
diff --git a/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs b/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs
index 013a2534..95c7cdbb 100644
--- a/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs
+++ b/src/c#/GeneralUpdate.Core/Exceptions/ThrowExceptionUtility.cs
@@ -10,6 +10,12 @@ public static void ThrowGeneralUpdateException(ExceptionArgs args)
 
         #region Common
 
+        public static void ThrowIfNull(object obj)
+        {
+            if (obj == null)
+                Throw<ArgumentException>("Parameter cannot be null");
+        }
+
         /// <summary>
         /// Checks if an object is empty and throws an exception if it is
         /// </summary>
diff --git a/src/c#/GeneralUpdate.Core/GeneralUpdateBootstrap.cs b/src/c#/GeneralUpdate.Core/GeneralUpdateBootstrap.cs
index 10519c9a..4cc57610 100644
--- a/src/c#/GeneralUpdate.Core/GeneralUpdateBootstrap.cs
+++ b/src/c#/GeneralUpdate.Core/GeneralUpdateBootstrap.cs
@@ -2,6 +2,7 @@
 using GeneralUpdate.Core.Domain.Entity;
 using GeneralUpdate.Core.Domain.Entity.Assembler;
 using GeneralUpdate.Core.Domain.Enum;
+using GeneralUpdate.Core.Exceptions;
 using GeneralUpdate.Core.Strategys;
 using GeneralUpdate.Core.Utils;
 using System;
@@ -21,7 +22,7 @@ private void Remote()
         {
             try
             {
-                var base64 = Environment.GetEnvironmentVariable("ProcessBase64", EnvironmentVariableTarget.Machine);
+                var base64 = Environment.GetEnvironmentVariable("ProcessBase64", EnvironmentVariableTarget.User);
                 var processInfo = SerializeUtil.Deserialize<ProcessInfo>(base64);
                 Packet = ProcessAssembler.ToPacket(processInfo);
                 Packet.AppType = AppType.UpgradeApp;
diff --git a/src/c#/GeneralUpdate.Core/Strategys/PlatformWindows/WindowsStrategy.cs b/src/c#/GeneralUpdate.Core/Strategys/PlatformWindows/WindowsStrategy.cs
index 9efa708d..7d46afeb 100644
--- a/src/c#/GeneralUpdate.Core/Strategys/PlatformWindows/WindowsStrategy.cs
+++ b/src/c#/GeneralUpdate.Core/Strategys/PlatformWindows/WindowsStrategy.cs
@@ -86,7 +86,7 @@ public override bool StartApp(string appName, int appType)
                 switch (appType)
                 {
                     case AppType.ClientApp:
-                        Environment.SetEnvironmentVariable("ProcessBase64", Packet.ProcessBase64, EnvironmentVariableTarget.Machine);
+                        Environment.SetEnvironmentVariable("ProcessBase64", Packet.ProcessBase64, EnvironmentVariableTarget.User);
                         WaitForProcessToStart(path, 20, () => WillMessageManager.Instance.Check());
                         break;