diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3 (Package)/Package.appxmanifest b/BetterLyrics.WinUI3/BetterLyrics.WinUI3 (Package)/Package.appxmanifest
index a5d005e..e2120c0 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3 (Package)/Package.appxmanifest	
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3 (Package)/Package.appxmanifest	
@@ -12,7 +12,7 @@
 	<Identity
 	  Name="37412.BetterLyrics"
 	  Publisher="CN=E1428B0E-DC1D-4EA4-ACB1-4556569D5BA9"
-	  Version="1.1.221.0" />
+	  Version="1.2.222.0" />
 
 	<mp:PhoneIdentity PhoneProductId="ca4a4830-fc19-40d9-b823-53e2bff3d816" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
 
diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Hooks/SystemVolumeHook.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Hooks/SystemVolumeHook.cs
index b4914ff..22df5ed 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Hooks/SystemVolumeHook.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Hooks/SystemVolumeHook.cs
@@ -17,12 +17,20 @@ namespace BetterLyrics.WinUI3.Hooks
 
         static SystemVolumeHook()
         {
-            _deviceEnumerator = new MMDeviceEnumerator();
-            _defaultDevice = _deviceEnumerator.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
-
-            if (_defaultDevice != null)
+            try
             {
-                _defaultDevice.AudioEndpointVolume.OnVolumeNotification += AudioEndpointVolume_OnVolumeNotification;
+                _deviceEnumerator = new MMDeviceEnumerator();
+                // 找不到设备会抛出异常，在这里截获它
+                _defaultDevice = _deviceEnumerator.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
+
+                if (_defaultDevice != null)
+                {
+                    _defaultDevice.AudioEndpointVolume.OnVolumeNotification += AudioEndpointVolume_OnVolumeNotification;
+                }
+            }
+            catch (Exception ex)
+            {
+                _defaultDevice = null;
             }
         }
 
diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/FileCacheEntity.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/FileCacheEntity.cs
index ab17f36..8eb93ca 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/FileCacheEntity.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/FileCacheEntity.cs
@@ -3,27 +3,24 @@ using System;
 
 namespace BetterLyrics.WinUI3.Models
 {
+    [Preserve(AllMembers = true)]
     [Table("FileCache")]
     public class FileCacheEntity
     {
         [PrimaryKey, AutoIncrement]
         public int Id { get; set; }
 
-        // 【新增】关键字段！
         // 关联到 MediaFolder.Id。
-        // 作用：
-        // 1. 区分不同配置（即使两个配置连的是同一个 SMB，但在 APP 里视为不同源）。
-        // 2. 删除配置时，可以由 MediaFolderId 快速级联删除所有缓存。
+        // 区分不同配置（即使两个配置连的是同一个 SMB，但在 APP 里视为不同源）。
+        // 删除配置时，可以由 MediaFolderId 快速级联删除所有缓存。
         [Indexed]
         public string MediaFolderId { get; set; }
 
-        // 【修改】从 ParentPath 改为 ParentUri
         // 存储父文件夹的标准 URI (smb://host/share/parent)
         // 根目录文件的 ParentUri 可以为空，或者等于 MediaFolder 的 Base Uri
         [Indexed]
         public string? ParentUri { get; set; }
 
-        // 【核心】标准化的完整 URI (smb://host/share/folder/file.ext)
         // 确保它是 URL 编码过且格式统一的
         [Indexed(Unique = true)]
         public string Uri { get; set; }
@@ -38,7 +35,6 @@ namespace BetterLyrics.WinUI3.Models
         // 记录修改时间，同步时对比使用
         public DateTime? LastModified { get; set; }
 
-        // ------ 元数据部分 (保持不变) ------
         public string Title { get; set; } = "";
         public string Artists { get; set; } = "";
         public string Album { get; set; } = "";
diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/PlayHistoryItem.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/PlayHistoryItem.cs
index 9d643fa..21dc4df 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/PlayHistoryItem.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Models/PlayHistoryItem.cs
@@ -5,6 +5,7 @@ using System.Text;
 
 namespace BetterLyrics.WinUI3.Models
 {
+    [Preserve(AllMembers = true)]
     [Table("PlayHistory")]
     public class PlayHistoryItem
     {