var archiveConfig = new ArchiveConfig()
	{
		EnableLogEntryPurging = false,
		LogEntryMaximumAgeInSeconds = 0,
		LogEntryMinimumRecordCount = 0,
  	ArchiveSchedules = new ObservableCollection<ArchiveSchedule>()
		{
		}	
	};

var response = portalContext.Configurations.UpdateArchiveConfig(archiveConfig).Execute();