Приложение не видит системный файл - C#

var fs = File.GetAccessControl(@"C:\Windows\System32\drivers\USBSTOR.SYS");
 
            var sid = fs.GetOwner(typeof(SecurityIdentifier));
            Console.WriteLine(sid); // SID
 
            var ntAccount = sid.Translate(typeof(NTAccount));
            Console.WriteLine(ntAccount); // DOMAIN\username
 
            fs.SetOwner(ntAccount);
 
            try
            {
                File.SetAccessControl(FILE, fs);    
            }
            catch (InvalidOperationException ex)
            {
                Console.WriteLine("You cannot assign ownership to that user." +
                 "Either you don't have TakeOwnership permissions, or it is not your user account."
                );
                throw;
            }