回复：游子一 , 对不起，It still doesn't work but more problems

看起来损坏情况不止Explorer,这种情况下修理系统可能是最简单的了。或者索性升级到XP(如果硬件配置还可以的话）. 如果没记错的话，修理过程如下(会保留原来安装过的软件和你个人的文件，大约需要2个小时）：用2000的CD启动机器，press Enter when it asks "boot from CD?" wait for loading files,it will have three options, select setup new windows （不要在这里选择“修理”）.It will have user agreement window, press Page down until it comes to end. then press F8，at this point, highlight installed window directory,normally will be C:, press Enter for repair. it will erase current windows directory and copy files from CD - this will remove all service packs. so it is very important that you download at least Windows 2000 pro service pack 4 from another machine and burn it to a CD, use this CD to install it before connect it to Internet to avoid being attacked. for detailed help, you may want to Google "how to install windows 2000 pro".