瑞星杀毒软件升级时出现弹出窗体：an error occurred occarred while reading the configuration file.please try to repair the file using add/remove programs in the windows control panei and try again(1)提示无法升级，如何处理？（而瑞星防火墙可以升级，我是正版软件），急！！！！谢谢解答。

用户系统信息：Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; QQDownload 1.7)