**【解决方法】** 谷歌浏览器安装失败错误代码0xa0430721 的解决办法 这个是因为我们删除的时候没有删除干净。然后又重装了谷歌浏览器。所以就出现这个问题了。 1、删除旧的配置文件,比如C:\Documents and Settings\XXX\Local Settings\Application Data\Google文件夹(红色部分是你的计算机名) 2、彻底清理注册表,删除chrome的相关文件,复制http://www.google.com/support/chrome/bin/resource/remove.txt里的内容到记事本,保存为.reg文件,双击运行! 内容如下: Windows Registry Editor Version 5.00 ; WARNING, this file will remove Google Chrome registry entries ; from your Windows Registry. Consider backing up your registry before ; using this file: http://support.microsoft.com/kb/322756 ; To run this file, save it as 'remove.reg' on your desktop and double-click it. [-HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ChromeHTML] [-HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\chrome.exe] [HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications] "Chrome"=- [-HKEY_CURRENT_USER\SOFTWARE\Classes\ChromeHTML] [-HKEY_CURRENT_USER\SOFTWARE\Clients\StartMenuInternet\chrome.exe] [HKEY_CURRENT_USER\SOFTWARE\RegisteredApplications] "Chrome"=- [-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Chrome] [-HKEY_CURRENT_USER\Software\Google\Update\Clients\{8A69D345-D564-463c-AFF1-A69D9E530F96}] [-HKEY_CURRENT_USER\Software\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96}] [-HKEY_CURRENT_USER\Software\Google\Update\Clients\{00058422-BABE-4310-9B8B-B8DEB5D0B68A}] [-HKEY_CURRENT_USER\Software\Google\Update\ClientState\{00058422-BABE-4310-9B8B-B8DEB5D0B68A}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientStateMedium\{8A69D345-D564-463c-AFF1-A69D9E530F96}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\Clients\{8A69D345-D564-463c-AFF1-A69D9E530F96}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96}] [-HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Google\Update\Clients\{8A69D345-D564-463c-AFF1-A69D9E530F96}] 3、重启电脑,安装已下载的离线安装包Chrome!