一台电脑在安装“传奇世界”这个网络游戏客户端的时候，运行安装程序，软件验证到最后退出NSIS错误的对话框。下面是对话框的内容，网上复制过来的：
NSIS Error
---------------------------
The installer you are trying to use is corrupted or incomplete.
This could be the result of a damaged disk, a failed download or a virus.
You may want to contact the author of this installer to obtain a new copy.
It may be possible to skip this check using the /NCRC command line switch
(NOT RECOMMENDED).

根据上面的提示，排除病毒和软件程序的因素，最后确定是硬盘的问题！

用 HDDREG 检测发现硬盘存在损坏扇区，用 diskgen 把损坏的部份隐藏起来，重新复制游戏程序过来安装，顺利完成。