diff --git a/app/Fans.Designer.cs b/app/Fans.Designer.cs
index 9536d650..0ad8a032 100644
--- a/app/Fans.Designer.cs
+++ b/app/Fans.Designer.cs
@@ -412,7 +412,7 @@ namespace GHelper
             comboBoost.ButtonColor = Color.FromArgb(255, 255, 255);
             comboBoost.DropDownStyle = ComboBoxStyle.DropDownList;
             comboBoost.FormattingEnabled = true;
-            comboBoost.Items.AddRange(new object[] { "Disabled", "Enabled", "Aggressive", "Efficient Enabled", "Efficient Aggressive" });
+            comboBoost.Items.AddRange(new object[] { "Disabled", "Enabled", "Aggressive", "Efficient Enabled", "Efficient Aggressive", "Aggressive at Guaranteed", "Efficient at Guaranteed" });
             comboBoost.Location = new Point(226, 10);
             comboBoost.Name = "comboBoost";
             comboBoost.Size = new Size(287, 40);
diff --git a/app/InputDispatcher.cs b/app/InputDispatcher.cs
index bd9fe018..612f19a8 100644
--- a/app/InputDispatcher.cs
+++ b/app/InputDispatcher.cs
@@ -242,21 +242,21 @@ namespace GHelper
                     case Keys.F7:
                         if (AppConfig.ContainsModel("TUF"))
                             Program.settingsForm.BeginInvoke(Program.settingsForm.RunToast, ScreenBrightness.Adjust(-10) + "%", ToastIcon.BrightnessDown);
-                        HandleEvent(16);
+                        HandleOptimizationEvent(16);
                         break;
                     case Keys.F8:
                         if (AppConfig.ContainsModel("TUF")) 
                             Program.settingsForm.BeginInvoke(Program.settingsForm.RunToast, ScreenBrightness.Adjust(+10) + "%", ToastIcon.BrightnessUp);
-                        HandleEvent(32);
+                        HandleOptimizationEvent(32);
                         break;
                     case Keys.F9:
                         KeyboardHook.KeyWinPress(Keys.P);
                         break;
                     case Keys.F10:
-                        HandleEvent(107);
+                        HandleOptimizationEvent(107);
                         break;
                     case Keys.F11:
-                        HandleEvent(108);
+                        HandleOptimizationEvent(108);
                         break;
                     case Keys.F12:
                         KeyboardHook.KeyWinPress(Keys.A);
@@ -343,10 +343,10 @@ namespace GHelper
                     }
                     break;
                 case "brightness_up":
-                    HandleEvent(32);
+                    HandleOptimizationEvent(32);
                     break;
                 case "brightness_down":
-                    HandleEvent(16);
+                    HandleOptimizationEvent(16);
                     break;
                 case "custom":
                     CustomKey(name);
@@ -429,10 +429,17 @@ namespace GHelper
                     return;
             }
 
-            if (OptimizationService.IsRunning()) return;
+            if (!OptimizationService.IsRunning()) 
+                
+                HandleOptimizationEvent(EventID);
 
             // Asus Optimization service Events 
 
+
+        }
+
+        static void HandleOptimizationEvent(int EventID)
+        {
             switch (EventID)
             {
                 case 16: // FN+F7
@@ -449,14 +456,7 @@ namespace GHelper
                 case 108: // FN+F11
                     Program.acpi.DeviceSet(AsusACPI.UniversalControl, AsusACPI.KB_Sleep, "Sleep");
                     break;
-                case 106: // Zephyrus DUO special key for turning on/off second display.
-                    //Program.acpi.DeviceSet(AsusACPI.UniversalControl, AsusACPI.KB_DUO_SecondDisplay, "SecondDisplay");
-                    break;
-                case 75: // Zephyrus DUO special key  for changing between arrows and pgup/pgdn
-                    //Program.acpi.DeviceSet(AsusACPI.UniversalControl, AsusACPI.KB_DUO_PgUpDn, "PgUpDown");
-                    break;
             }
-
         }
 
 
diff --git a/app/NativeMethods.cs b/app/NativeMethods.cs
index 4836039a..32f4e546 100644
--- a/app/NativeMethods.cs
+++ b/app/NativeMethods.cs
@@ -724,6 +724,14 @@ public class NativeMethods
             int iRet = NativeMethods.ChangeDisplaySettingsEx(laptopScreen, ref dm, IntPtr.Zero, DisplaySettingsFlags.CDS_UPDATEREGISTRY, IntPtr.Zero);
             Logger.WriteLine("Screen = " + frequency.ToString() + "Hz : " + (iRet == 0 ? "OK" : iRet));
 
+            //Fallback scenario
+            if (iRet != 0)
+            {
+                Thread.Sleep(300);
+                iRet = NativeMethods.ChangeDisplaySettingsEx(laptopScreen, ref dm, IntPtr.Zero, DisplaySettingsFlags.CDS_UPDATEREGISTRY, IntPtr.Zero);
+                Logger.WriteLine("Screen = " + frequency.ToString() + "Hz : " + (iRet == 0 ? "OK" : iRet));
+            }
+
             return iRet;
         }
 
diff --git a/app/Updates.cs b/app/Updates.cs
index 9a1d06fb..5bec0c9f 100644
--- a/app/Updates.cs
+++ b/app/Updates.cs
@@ -145,7 +145,7 @@ namespace GHelper
                                 driver.hardwares = file.GetProperty("HardwareInfoList");
                                 drivers.Add(driver);
 
-                                BeginInvoke(delegate
+                                Invoke(delegate
                                 {
                                     string versionText = driver.version.Replace("latest version at the ", "");
                                     Label versionLabel = new Label { Text = versionText, Anchor = AnchorStyles.Left, AutoSize = true };
@@ -170,7 +170,7 @@ namespace GHelper
                         }
                     }
 
-                    BeginInvoke(delegate
+                    Invoke(delegate
                     {
                         table.Visible = true;
                         ResumeLayout(false);
@@ -206,7 +206,7 @@ namespace GHelper
                             var label = table.GetControlFromPosition(2, count) as Label;
                             if (label != null)
                             {
-                                BeginInvoke(delegate
+                                Invoke(delegate
                                 {
                                     label.Font = new Font(label.Font, FontStyle.Underline | FontStyle.Bold);
                                     label.ForeColor = colorTurbo;