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当在Windows7缺少用于验证该证书的根证书，一键安装最新根证书方法

受信任的根证书在win7上过时且数量有限，如下图仅11个根证书证书验证错误程序抛出的错误现象可以手动下载Lets Encrypt的根证书，其他证书按部就班下载证书文件：直接访问 Lets Encrypt 官网的证书页面，找到 ISRG Root X1。在 ISRG Root X1 的详细信息里，点击 DER 格式的链接下载证书文件（文件后缀通常是 .der 或 .crt）。或者，也可以直接...

电脑相关 xnkyns 2026-08-25 15:35:39 更新于 2026-08-25 15:37:30 0 回复 0 赞 55 浏览

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#1 xnkyns 2026-08-25 15:35:39
受信任的根证书在win7上过时且数量有限，如下图仅11个根证书
```
查看证书命令  win+R  certmgr.msc
```
证书验证错误程序抛出的错误现象

可以手动下载Let’s Encrypt的根证书，其他证书按部就班
1. 下载证书文件：
  - 直接访问 Let’s Encrypt 官网的证书页面，找到 ISRG Root X1。
  - 在 ISRG Root X1 的详细信息里，点击 DER 格式的链接下载证书文件（文件后缀通常是 .der 或 .crt）。
  - 或者，也可以直接访问 http://x1.i.lencr.org/ 这个由 Let’s Encrypt 运营的链接来下载证书文件。
2. 安装证书到系统：
  - 下载完成后，双击这个 .der 证书文件，系统会弹出证书属性窗口。
  - 点击窗口下方的“安装证书”按钮。
  - 在安装向导中，将证书存储位置选择为“受信任的根证书颁发机构”。
  - 之后一直点击“下一步”直到完成导入。为了保险起见，可以重启一次电脑让设置生效。
  注意事项：安装完的证书如果位置不对，可以手动拖动到 “受信任的根证书颁发机构” 目录中即可
自动一键更新所有证书工具

使用这个项目，详细说明上github查看，下载exe到win7,双击执行就自己更新完了

https://github.com/asheroto/UpdateRootCertificates/releases

简单粗暴，这是装了很多证书的效果

总结-注意事项

下面是腾讯云的免费证书签发机构，一键更新证书后，可以正常使用tls了

公用名(CN) TrustAsia DV TLS RSA CA 2024 组织(O) TrustAsia Technologies, Inc.

tls报错还有一种情况是，系统时间不准确导致，同步一下电脑时间（一般会被忽略这个问题）

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