一安装就出现下面的文字:
There are data on your computer which will be deleted the next time you restart the computer.This may lead to problems if you reinstall the software.Restart Windows and then start Setup again.
然后重启动也不行,注册表里面关于PLCSIM的东西都删除干净了,还是不行,难道非要重新安装系统吗?