要获取新的Secure Boot证书，确保你已经应用了最新的Windows更新。在Windows 10中，前往设置，选择更新与安全，然后点击Windows更新，检查是否有可用更新。在Windows 11中，直接进入Windows更新，点击检查更新按钮。下载并安装最新更新后，再次检查Secure Boot状态。

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