title: matlab安装不了我以前安装过MATLAB7.0可以安装，但安 
desc: 我以前安装过MATLAB7.0可以安装，但安装MATLAB7.6后 。把原来的卸掉了，现在安装7.0的也安装不了，提示the installer cannot read the  mstall.dll  file, this is probably due to a  cd  reader which can only read files 
  with an  eight.three naming convention.please see the technical support page at   for assistance
answer: 英文意思是mwinstall.dll 不是8.3规则的文件名，你的安装程序不能读取。建议升级系统的windows installer程序为最新版。试试看不行的话，按楼上所说硬盘安装。