diff --git a/Plugins/Wox.Plugin.Sys/Sys.cs b/Plugins/Wox.Plugin.Sys/Sys.cs
index 1617772b09..359faeef4b 100644
--- a/Plugins/Wox.Plugin.Sys/Sys.cs
+++ b/Plugins/Wox.Plugin.Sys/Sys.cs
@@ -8,13 +8,13 @@ using Wox.Infrastructure;
 
 namespace Wox.Plugin.Sys
 {
-    public class Sys : IPlugin, ISettingProvider ,IPluginI18n
-	{
-		List<Result> availableResults = new List<Result>();
+    public class Sys : IPlugin, ISettingProvider, IPluginI18n
+    {
+        List<Result> availableResults = new List<Result>();
         private PluginInitContext context;
 
-		#region DllImport
-		
+        #region DllImport
+
         internal const int EWX_LOGOFF = 0x00000000;
         internal const int EWX_SHUTDOWN = 0x00000001;
         internal const int EWX_REBOOT = 0x00000002;
@@ -26,7 +26,7 @@ namespace Wox.Plugin.Sys
         [DllImport("user32")]
         private static extern void LockWorkStation();
 
-		#endregion
+        #endregion
 
         public System.Windows.Controls.Control CreateSettingPanel()
         {
@@ -35,11 +35,6 @@ namespace Wox.Plugin.Sys
 
         public List<Result> Query(Query query)
         {
-            if (availableResults.Count == 0)
-            {
-                LoadCommands();
-            }
-
             List<Result> results = new List<Result>();
             foreach (Result availableResult in availableResults)
             {
@@ -54,6 +49,7 @@ namespace Wox.Plugin.Sys
         public void Init(PluginInitContext context)
         {
             this.context = context;
+            LoadCommands();
         }
 
         private void LoadCommands()
@@ -153,5 +149,5 @@ namespace Wox.Plugin.Sys
         {
             return context.API.GetTranslation("wox_plugin_sys_plugin_description");
         }
-	}
+    }
 }
diff --git a/Plugins/Wox.Plugin.Sys/SysSettings.xaml.cs b/Plugins/Wox.Plugin.Sys/SysSettings.xaml.cs
index 6f91acc032..8c0546be69 100644
--- a/Plugins/Wox.Plugin.Sys/SysSettings.xaml.cs
+++ b/Plugins/Wox.Plugin.Sys/SysSettings.xaml.cs
@@ -3,9 +3,6 @@ using System.Windows.Controls;
 
 namespace Wox.Plugin.Sys
 {
-    /// <summary>
-    /// Interaction logic for SysSettings.xaml
-    /// </summary>
     public partial class SysSettings : UserControl
     {
         public SysSettings(List<Result> Results)
diff --git a/Wox.Core/Updater/UpdaterManager.cs b/Wox.Core/Updater/UpdaterManager.cs
index 21b43cfef7..f93f9a3487 100644
--- a/Wox.Core/Updater/UpdaterManager.cs
+++ b/Wox.Core/Updater/UpdaterManager.cs
@@ -15,6 +15,7 @@ using Wox.Core.i18n;
 using Wox.Core.UserSettings;
 using Wox.Infrastructure.Http;
 using Wox.Infrastructure.Logger;
+using System.Threading;
 
 namespace Wox.Core.Updater
 {
@@ -82,22 +83,25 @@ namespace Wox.Core.Updater
 
         public void CheckUpdate()
         {
-            string json = HttpRequest.Get(VersionCheckURL, HttpProxy.Instance);
-            if (!string.IsNullOrEmpty(json))
+            ThreadPool.QueueUserWorkItem(o =>
             {
-                try
+                string json = HttpRequest.Get(VersionCheckURL, HttpProxy.Instance);
+                if (!string.IsNullOrEmpty(json))
                 {
-                    NewRelease = JsonConvert.DeserializeObject<Release>(json);
-                    if (IsNewerThanCurrent(NewRelease) && !UserSettingStorage.Instance.DontPromptUpdateMsg)
+                    try
                     {
-                        StartUpdate();
+                        NewRelease = JsonConvert.DeserializeObject<Release>(json);
+                        if (IsNewerThanCurrent(NewRelease) && !UserSettingStorage.Instance.DontPromptUpdateMsg)
+                        {
+                            StartUpdate();
+                        }
+                    }
+                    catch (System.Exception e)
+                    {
+                        Log.Error(e);
                     }
                 }
-                catch (System.Exception e)
-                {
-                    Log.Error(e);
-                }
-            }
+            });
         }
 
         private void StartUpdate()