Docker Toolbox Looks like something went wrong

Docker Toolbox 从新安装后提示错误:Looks like something went wrong in step ´Checking if machine default exists´ 控制面板-->程序与应用-->启用或关闭windows功能：找到Hyper-V,若是处于勾选状态，取消勾选，从新运行Docker。 环境：window10 64位专业版，下载的Docker ToolBox 安装好后，运行正常，又启用了Hyper-V，再运行就出错，卸载掉以后运行正常。