I started using android studio and to use the emulator i have to enable Virtualization in BIOS. But my BIOS doesnt have this option !
My CPU is VT -x ( intel core i7 4710MQ) so it should have this option .
So what should i do ? should i update BIOS ? Anything ? Anyone ?
My motherboard is
 Which version of Windows 8? It matters.
What motherboard do you have?

Are you sure you need BIOS support for Android emulation?
Did you see this?
Run Android apps on your Windows PC
Quote

The BlueStacks client will load up in a desktop window with different app categories like games, social, and so on. Clicking on an app or searching does something unexpected — it brings up the full Play Store client as rendered on tablets. You can actually navigate AROUND in this interface just as you WOULD on a real Android device, which MAKES it clear there’s a lot more to BlueStacks than the “App Player” front end. In fact, you can install a third-party launcher like Nova or APEX from the Play Store and set it as the default. The main screen in BlueStacks with the app categories is just a custom home screen, so REPLACING it makes BlueStacks feel almost like a regular Android device.