diff --git a/changelog/v7.4.7+146.md b/changelog/v7.4.7+146.md
index 059c4a8f..d62743fc 100644
--- a/changelog/v7.4.7+146.md
+++ b/changelog/v7.4.7+146.md
@@ -1,3 +1,4 @@
+- 修复v7.4.6版本，部分windows端用户无法打开应用的bug
 - 优化桌面端保存至图库时的图片命名规则
 - 桌面端使用新的窗口组件
 - 桌面端支持F11全屏
@@ -7,6 +8,7 @@
 
 ------------------------------------------------------------------------------------------
 
+- Fix the bug that some Windows users cannot open the application in v7.4.6
 - Optimize the naming rule of images when saving on desktop
 - Use new window component on desktop
 - Support F11 to toggle full screen mode on desktop
diff --git a/lib/src/setting/super_resolution_setting.dart b/lib/src/setting/super_resolution_setting.dart
index ae0aa8be..8ac16c41 100644
--- a/lib/src/setting/super_resolution_setting.dart
+++ b/lib/src/setting/super_resolution_setting.dart
@@ -134,7 +134,7 @@ class SuperResolutionSetting {
 
   static _initFromMap(Map<String, dynamic> map) {
     modelDirectoryPath.value = map['modelDirectoryPath'];
-    model.value = ModelType.values[map['model']];
+    model.value = map['model'] == null ? ModelType.CUGAN : ModelType.values[map['model']];
     gpuId.value = map['gpuId'] ?? gpuId.value;
   }
 }