运行docker命令时出现连接错误

运行

docker images

时，我收到错误消息

error during connect: Get http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.40/images/json:
open //./pipe/docker_engine: The system cannot find the file specified.
In the default daemon configuration on Windows, the docker client must be
run elevated to connect. This error may also indicate that the docker
daemon is not running.

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我使用的是Windows 10 Home，尝试安装/重新安装Docker，但不断出现错误。一小时前一切正常

你能检查一下你的虚拟机是否在docker机器下运行吗？您可以运行以下命令：

docker-machine ls

如果您还没有安装docker机器，请安装它

参考：-

注意：-确保已启用BIOS虚拟化