diff --git a/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs b/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs
index 567b8db0..d340d6bf 100644
--- a/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs
+++ b/src/c#/GeneralUpdate.Core/Bootstrap/AbstractBootstrap.cs
@@ -63,6 +63,7 @@ public virtual TBootstrap LaunchAsync()
                 Packet.DownloadTimeOut = GetOption(UpdateOption.DownloadTimeOut);
                 Packet.AppName = $"{Packet.AppName ?? GetOption(UpdateOption.MainApp)}{EXECUTABLE_FILE}";
                 Packet.TempPath = $"{FileUtil.GetTempDirectory(Packet.LastVersion)}{Path.DirectorySeparatorChar}";
+                Packet.IsRestore = GetOption(UpdateOption.Restore);
                 var manager = new DownloadManager<VersionInfo>(Packet.TempPath, Packet.Format, Packet.DownloadTimeOut);
                 manager.MultiAllDownloadCompleted += OnMultiAllDownloadCompleted;
                 manager.MultiDownloadCompleted += OnMultiDownloadCompleted;
diff --git a/src/c#/GeneralUpdate.Core/Domain/Entity/Packet.cs b/src/c#/GeneralUpdate.Core/Domain/Entity/Packet.cs
index 85b6f039..40f787fc 100644
--- a/src/c#/GeneralUpdate.Core/Domain/Entity/Packet.cs
+++ b/src/c#/GeneralUpdate.Core/Domain/Entity/Packet.cs
@@ -131,5 +131,10 @@ public Packet(string mainUpdateUrl, int appType, string updateUrl, string appNam
         /// File formats in the blacklist will skip the update.
         /// </summary>
         public List<string> BlackFormats { get; set; }
+
+        /// <summary>
+        /// Whether to enable automatic backup during the upgrade.
+        /// </summary>
+        public bool IsRestore { get; set; }
     }
 }
\ No newline at end of file