在安装 Adobe AIR 的时候出现提示说“管理员不允许安装...”之类的,其实是因为旧版本未删除干净的关系,这个时候你可以通过 Windows Installer Clean Up 来处理。

The Windows Installer Cleanup utility (MSICUU2.exe) that was previously referred to in this article resolved some installation problems but sometimes caused issues with other programs or components that are installed on the computer. Because of this, the tool has been removed from the Microsoft Download Center.
via https://social.microsoft.com/Forums/it-IT/3388fad8-adba-4098-8660-9ee56a4e3b68/windows-install-clean-up-?forum=sqlserverzhchs

不过由于该工具可能会导致其他程序异常,所以该工具已经无法从微软官网下载了,但是你仍然可以通过第三方下载渠道去下载,度娘快捷...:)