Error Message错误信息
The following error message is displayed when
trying to install:
"Error 1500. Another installation is in progress. You
must complete that installation before continuing this one."
Cause原因
The installation process is hung.安装操作被挂起。
Solution or Workaround解决方法
点击开始菜单-运行，输入“Regedit”并点击确定，进入注册表编辑器。
Select Start > Run, type regedit and click OK to start the Registry
Editor.
找到并删除以下键值
Locate and delete the following subkey in the
registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress
关闭所有窗口并重启电脑，然后重新运行安装程序。
Close all windows and restart the computer.
Start the installation process again.
