Enable VT-x in your BIOS security settings, ensure that HAXM is installed properly

点击android studio-->Tools-->AVD Manager-->+ Create Virtual Device...-->Virtual Device Configuration-->Phone-->随便点一个-->Next。出现这个问题：

Enable VT-x in your BIOS security settings, ensure that HAXM is installed properly

我进入boot，确定已经做了

1.检查BIOS中的设置确保打开CPU 的Virtualization
2.关闭Sercue Boot

后面看到这个网页：

https://blog.youkuaiyun.com/qq_35582562/article/details/103186710

解决方法如下：

(1)进入网页：https://github.com/intel/haxm/releases/tag/v7.5.1，下载 haxm-windows_v7_5_1.zip

(2)点击开始-->所有程序-->控制面板-->程序和功能-->Intel@ Hardware Accelerated Execution Manager-->卸载

    如果不做这一步，直接做下面一步，会出现这个问题：

    A newer version of Intel@Hardware Accelerated Execution Manager is already
installed. The current installtion will exit. If you really want to downgrade, you
can uninstall the newer version from control panel first and then install the older
version

(3)解压haxm-windows_v7_5_1.zip，双击haxm-windows_v7_5_1\intelhaxm-android.exe，安装

到此，问题解决。