VT Not Supported when Installing HAXM

Question

I am trying to install fast Android emulator which uses Intel x86 emulator accelerator. I've downloaded the accelerator via SDK manager but when I tried to install it I got following error message in the beginning of the installation:

I know that my CPU (i7-3520M) supports VT-X virtualization so I went to BIOS to make sure that it is enabled:

As you can see, the feature is enabled in BIOS. I've found 'securable.exe' utility on the internet and when I launch it the following window is shown:

Any thoughts or recommendations? I have Lenovo Z580 Laptop with Intel Core i7 and I know for sure it should support such a basic virtualization functionality.

OS is Windows 8 Pro, I also have Hyper-V enabled, I use this machine for Windows Phone 8 development.

--- edit ---

It turns out that VT-x starts working when you turn off the Hyper-V! It is very annoying because I cannot use Android and WP emulators at the same time. Does anyone know how to fix it?

Answer 1

So the only solution I've found to make it work is to completely disable Hyper-V in Control Panel -> Programs and Features -> Turn Features On or Off.

If anyone knows how to enable VT-x without disabling Hyper-V please answer this question...

Answer 2

To turn off Hyper-V run this from cmd: bcdedit /set hypervisorlaunchtype off, and then reboot.

To turn Hyper-V back on, run this: bcdedit /set hypervisorlaunchtype auto