Could not retrieve update information是什么意思?

Could not retrieve update information是什么意思? retrieve information是什么意思? 安装win7的时候 Windows could not retrieve information about the d retrieve是什么意思? cad2013安装失败 提示error1924.could not update. Error 1924.Could not update environment variable path.Verify retrieve options是什么意思 update是什么意思 The Adobe Update could not be started.Please reinstall the a 请问setup could not find the update.inf file needed如题 can not get download information是什么意思啊? update your ticket是什么意思