Neden Unparsable query\Not found hatası alıyorum?

private void BackgroundWorker_DoWork(object? sender, DoWorkEventArgs e)

        {

            string scopePath = @"\\.\root\\Microsoft\\Windows\\Registry";

            string queryText = "SELECT * FROM RegistryValueChangeEvent WHERE Hive = 'HKEY_LOCAL_MACHINE' AND KeyPath = '\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System'";

            WqlEventQuery query = new WqlEventQuery(queryText);



            using (ManagementEventWatcher watcher = new ManagementEventWatcher(new ManagementScope(scopePath), query))

            {

                watcher.EventArrived += RegistryValueChangedEventArrived;

                watcher.Start();



            }

        }

        private void BackgroundWorker_DoWork(object? sender, DoWorkEventArgs e)
        {
            string scopePath = @"\\.\root\\\\Microsoft\\\\Windows\\\\Registry";
            string queryText = "SELECT * FROM RegistryValueChangeEvent WHERE Hive = 'HKEY_LOCAL_MACHINE' AND KeyPath = '\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System'";
            WqlEventQuery query = new WqlEventQuery(queryText);

            using (ManagementEventWatcher watcher = new ManagementEventWatcher(new ManagementScope(scopePath), query))
            {
                watcher.EventArrived += RegistryValueChangedEventArrived;
                watcher.Start();

            }
        }

   private void BackgroundWorker_DoWork(object? sender, DoWorkEventArgs e)
        {
            try
            {
                string scopePath = @"\\.\root\\\\Microsoft\\\\Windows\\\\Registry";
                string queryText = "SELECT * FROM RegistryValueChangeEvent WHERE Hive = 'HKEY_LOCAL_MACHINE' AND KeyPath = '\\\\SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Policies\\\\System'\r\n";
                WqlEventQuery query = new WqlEventQuery(queryText);

                using (ManagementEventWatcher watcher = new ManagementEventWatcher(new ManagementScope(scopePath), query))
                {
                    watcher.EventArrived += RegistryValueChangedEventArrived;
                    watcher.Start();

                }
            }
            catch (ManagementException ex)
            {
                // Log or display the exception message for troubleshooting
                Console.WriteLine("ManagementException: " + ex.Message);
            }
        }

 private void BackgroundWorker_DoWork(object? sender, DoWorkEventArgs e)
        {
            try
            {
                string scopePath = @"\\.\root\\\\Microsoft\\\\Windows\\\\Registry";
                string queryText = "SELECT * FROM RegistryValueChangeEvent WHERE Hive = 'HKEY_LOCAL_MACHINE' AND KeyPath = '\\\\SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Policies\\\\System'\r\n";
                WqlEventQuery query = new WqlEventQuery(queryText);

                using (ManagementEventWatcher watcher = new ManagementEventWatcher(new ManagementScope(scopePath), query))
                {
                    watcher.EventArrived += RegistryValueChangedEventArrived;
                    watcher.Start();

                }
            }
            catch (ManagementException ex)
            {
                // Log or display the exception message for troubleshooting
                Console.WriteLine("ManagementException: " + ex.Message);
            }
        }

        private void RegistryValueChangedEventArrived(object sender, EventArrivedEventArgs e)
        {
            // Get the name of the process that made the registry value change
            var processNameProperty = e.NewEvent.Properties["ProcessName"];
            string processName = processNameProperty?.Value?.ToString() ?? string.Empty;

            // Check if the process executed the "reg add" command
            if (string.Equals(processName, "reg", StringComparison.OrdinalIgnoreCase))
            {
                // Show a message indicating the process that made the registry value change
                MessageBox.Show($"The process '{processName}' made changes to the registry value: DisableTaskMgr");
                // Perform any desired actions here
            }
        }