This computer does not support Intel Virtualization Technology (VT-x) or it is being exclusively used by Hyper-V. HAXM cannot be installed. Please ensure Hyper-V is disabled in Windows Features
If you already turned off the Hyper V and Windows Hypervisor plataform and could not install the HAXM. You can try it.
Run Command Prompt
as Administrator and type:
dism.exe /Online /Disable-Feature:Microsoft-Hyper-V
Then
bcdedit /set hypervisorlaunchtype off
Ater that try to install the HAMX, after install it yo can undo the configuration.
dism.exe /Online /Enable-Feature:Microsoft-Hyper-V /All
Then
bcdedit /set hypervisorlaunchtype auto