Setup was not able to find an existing installation to

Setup was not able to find an existing installation to
Setup was not able to find an existing installation to

Setup was not able to find an existing installation to
安装过程找不到已经存在的装置去更新
这个应该是你装驱动或者某个软件的时候弹出来的提示信息吧?

文件已下载，可是不法找到安装文件升级。