diff --git a/Wox.Infrastructure/Storage/JsonStorage.cs b/Wox.Infrastructure/Storage/JsonStorage.cs
index 045c7fa697..0726c5bd3a 100644
--- a/Wox.Infrastructure/Storage/JsonStorage.cs
+++ b/Wox.Infrastructure/Storage/JsonStorage.cs
@@ -30,7 +30,7 @@ namespace Wox.Infrastructure.Storage
             };
         }
 
-        public override T Load()
+        public T Load()
         {
             if (File.Exists(FilePath))
             {
@@ -64,13 +64,13 @@ namespace Wox.Infrastructure.Storage
             }
         }
 
-        public override void LoadDefault()
+        public void LoadDefault()
         {
             Data = JsonConvert.DeserializeObject<T>("{}", _serializerSettings);
             Save();
         }
 
-        public override void Save()
+        public void Save()
         {
             string serialized = JsonConvert.SerializeObject(Data, Formatting.Indented);
             File.WriteAllText(FilePath, serialized);
diff --git a/Wox.Infrastructure/Storage/Storage.cs b/Wox.Infrastructure/Storage/Storage.cs
index 0b8302d251..6928d5d833 100644
--- a/Wox.Infrastructure/Storage/Storage.cs
+++ b/Wox.Infrastructure/Storage/Storage.cs
@@ -13,21 +13,6 @@ namespace Wox.Infrastructure.Storage
         public string DirectoryPath { get; set; }
         public string DirectoryName { get; set; }
 
-        public virtual T Load()
-        {
-            throw new NotImplementedException();
-        }
-
-        public virtual void Save()
-        {
-            throw new NotImplementedException();
-        }
-
-        public virtual void LoadDefault()
-        {
-            throw new NotImplementedException();
-        }
-
         protected Storage()
         {
             DataType = typeof (T);