diff --git a/app/Extra.cs b/app/Extra.cs
index 4c5a874b..64aebc1e 100644
--- a/app/Extra.cs
+++ b/app/Extra.cs
@@ -398,7 +398,10 @@ namespace GHelper
             checkGpuApps.Checked = AppConfig.Is("kill_gpu_apps");
             checkGpuApps.CheckedChanged += CheckGpuApps_CheckedChanged;
 
-            checkBootSound.Checked = (Program.acpi.DeviceGet(AsusACPI.BootSound) == 1);
+            int bootSound = Program.acpi.DeviceGet(AsusACPI.BootSound);
+            if (bootSound < 0 || bootSound > UInt16.MaxValue) bootSound = AppConfig.Get("boot_sound", 0);
+
+            checkBootSound.Checked = (bootSound == 1);
             checkBootSound.CheckedChanged += CheckBootSound_CheckedChanged;
 
             var statusLed = Program.acpi.DeviceGet(AsusACPI.StatusLed);
@@ -536,7 +539,9 @@ namespace GHelper
 
         private void CheckBootSound_CheckedChanged(object? sender, EventArgs e)
         {
-            Program.acpi.DeviceSet(AsusACPI.BootSound, (checkBootSound.Checked ? 1 : 0), "BootSound");
+            int bootSound = checkBootSound.Checked ? 1 : 0;
+            Program.acpi.DeviceSet(AsusACPI.BootSound, bootSound, "BootSound");
+            AppConfig.Set("boot_sound", bootSound);
         }
 
         private void CheckGPUFix_CheckedChanged(object? sender, EventArgs e)