谷歌浏览器打不开网页可能是由于多种原因导致的，包括本地网络代理配置问题、Hosts文件被拦截、DNS解析问题、浏览器缓存或插件冲突等。以下是一些排查和解决步骤：
1. 检查本地网络代理配置：
- 打开“控制面板”>“网络和Internet”>“网络和共享中心”，查看当前的代理设置。
- 尝试禁用或更改代理设置，然后重启浏览器。
2. 检查Hosts文件：
- 打开“记事本”或其他文本编辑器，输入以下命令查看当前Hosts文件中的内容：

echo %windir%\system32\drivers\etc\hosts | findstr /c:"127.0.0.1" > hosts_backup.txt
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echo %windir%\system32\drivers\etc\hosts >> hosts_backup.txt
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