Add a dedicated function for disabling boot message

scripts/Windows/OS/Install.ps1

@@ -449,7 +449,7 @@ $null = New-Module {
 
                             [string[]] $users = Get-Users;
                             $currentUser = Get-CurrentUser;
-                            Set-BootMessage;
+                            Disable-BootMessage;
 
                             if ($currentUser -lt $users.Count) {
                                 $user = Get-LocalUser $users[$currentUser];

scripts/Windows/Scripts/Registry.ps1

@@ -45,4 +45,12 @@ $null = New-Module {
                 -Value ($options[$key]);
         }
     }
+
+    <#
+        .SYNOPSIS
+        Disables the boot message.
+    #>
+    function Disable-BootMessage {
+        Set-BootMessage;
+    }
 }