Hyper-V Enhanced Session Wont Work – Grayed Out [closed]
ESM only works with Windows 8.1 and Windows Server 2012 R2 VMs. Since you’re using a Win7 VM, ESM isn’t going to be available.
hyper-v
Making Hyper-V and Intel HAXM to co-exist
Update to Windows 10 v1801 and April 2018 update and it will work. Windows now supports Android emulation using Hyper-V. Thanks to @JunleLi for the tip. https://blogs.msdn.microsoft.com/visualstudio/2018/05/08/hyper-v-android-emulator-support/