diff --git a/Flow.Launcher/CustomQueryHotkeySetting.xaml.cs b/Flow.Launcher/CustomQueryHotkeySetting.xaml.cs
index 8493d192d..190412f43 100644
--- a/Flow.Launcher/CustomQueryHotkeySetting.xaml.cs
+++ b/Flow.Launcher/CustomQueryHotkeySetting.xaml.cs
@@ -2,8 +2,6 @@
 using Flow.Launcher.Helper;
 using Flow.Launcher.Infrastructure.Hotkey;
 using Flow.Launcher.Infrastructure.UserSettings;
-using NHotkey;
-using NHotkey.Wpf;
 using System;
 using System.Collections.ObjectModel;
 using System.Linq;
diff --git a/Flow.Launcher/Helper/HotKeyMapper.cs b/Flow.Launcher/Helper/HotKeyMapper.cs
index e653e8280..d5fcabace 100644
--- a/Flow.Launcher/Helper/HotKeyMapper.cs
+++ b/Flow.Launcher/Helper/HotKeyMapper.cs
@@ -113,5 +113,24 @@ namespace Flow.Launcher.Helper
                 mainViewModel.ChangeQueryText(hotkey.ActionKeyword);
             });
         }
+
+        internal static bool CheckAvailability(HotkeyModel currentHotkey)
+        {
+            try
+            {
+                HotkeyManager.Current.AddOrReplace("HotkeyAvailabilityTest", currentHotkey.CharKey, currentHotkey.ModifierKeys, (sender, e) => { });
+
+                return true;
+            }
+            catch
+            {
+            }
+            finally
+            {
+                HotkeyManager.Current.Remove("HotkeyAvailabilityTest");
+            }
+
+            return false;
+        }
     }
 }
diff --git a/Flow.Launcher/HotkeyControl.xaml.cs b/Flow.Launcher/HotkeyControl.xaml.cs
index ed90e40af..be971c8ab 100644
--- a/Flow.Launcher/HotkeyControl.xaml.cs
+++ b/Flow.Launcher/HotkeyControl.xaml.cs
@@ -4,8 +4,8 @@ using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
 using System.Windows.Media;
-using NHotkey.Wpf;
 using Flow.Launcher.Core.Resource;
+using Flow.Launcher.Helper;
 using Flow.Launcher.Infrastructure.Hotkey;
 using Flow.Launcher.Plugin;
 
@@ -92,24 +92,7 @@ namespace Flow.Launcher
             SetHotkey(new HotkeyModel(keyStr), triggerValidate);
         }
 
-        private bool CheckHotkeyAvailability()
-        {
-            try
-            {
-                HotkeyManager.Current.AddOrReplace("HotkeyAvailabilityTest", CurrentHotkey.CharKey, CurrentHotkey.ModifierKeys, (sender, e) => { });
-
-                return true;
-            }
-            catch
-            {
-            }
-            finally
-            {
-                HotkeyManager.Current.Remove("HotkeyAvailabilityTest");
-            }
-
-            return false;
-        }
+        private bool CheckHotkeyAvailability() => HotKeyMapper.CheckAvailability(CurrentHotkey);
 
         public new bool IsFocused
         {
diff --git a/Flow.Launcher/ViewModel/MainViewModel.cs b/Flow.Launcher/ViewModel/MainViewModel.cs
index 8e5b647f3..5b9706a32 100644
--- a/Flow.Launcher/ViewModel/MainViewModel.cs
+++ b/Flow.Launcher/ViewModel/MainViewModel.cs
@@ -6,8 +6,6 @@ using System.Threading.Tasks;
 using System.Threading.Tasks.Dataflow;
 using System.Windows;
 using System.Windows.Input;
-using NHotkey;
-using NHotkey.Wpf;
 using Flow.Launcher.Core.Plugin;
 using Flow.Launcher.Core.Resource;
 using Flow.Launcher.Helper;