Cannot start windows phone emulator in visual studio 2015

Question

My machine is HP EliteBook 8540w which supports Hyper-V as far as I know and I have enabled it in BIOS. However, I am receiving the following error when trying to start emulator for Windows Phone apps in Visual Studio 2015:

Windows Phone Emulator is unable to start because the hypervisor is not running.

The more detailed screen shot follows:

According to my i7-720QmCPU specs, it supports VT-d

So what is the reason for it being unable to start the emulator on my machine?

Update:
I also checked using the BIOS settings using coreinfo tool with the results as in the following picture:

Update:

Following stijnvangaal's comment, I ran the following command as administrator and rebooted.

'bcdedit /set hypervisorlaunchtype auto'

But, in the wake of next run I faced the following Window ("Virtual machine service not running")

Then, I started this (by clicking the link on the message box):

Under, action menu, I clicked "start service" and then ran the application again in visual studio. Success? Not yet unfortunately, ending up in this (feeling desperate):

Answer 1

I had the same issue : 1 - I disable the Hyper V mode in the Windows Feature :

• Go to ‘Programs and Features’.
• Select Turn Windows Features on or off.
• Deselect Hyper-V and click OK.

2 - Restart the computer

3 - Enable Hyper V again in the Windows Feature.

And it works ! Hope it help :)