virtualbox.org

My host is windows 8.1 64bit, and Virtual Box version is 4.3.30 ...I'm trying to use - VT-x feature in one of my virtual machine (Windows 7 64 Bit)

1. I have enabled Virtualization setting in BIOS.
2. My Host machine setting is has VT-x enabled ...i.e. (on System > Acceleration tab) "VT-x/AMD V" = yes.......&..... "Enabled Nested Paging" = Yes

I installed Intel processor identification utility on both Host & VM. It says Virtualization is available on host ... but not on my VM.

when i try to install Intel Hardware Accelerated Execution Manager (HAXM) on VM ... it gives me error-

This computer does not support Intel Virtualization Technology (VT-x). HAXM cannot be installed.
Please refer to the Intel HAXM documentation for more information.


I want to install this for Android SDK.

That is correct. VirtualBox uses CPU virtualization features itself. They are not passed to the VM.

VirtualBox does not support nested virtualization.

I am having the same problem. Virtualization is enabled in my BIOS, running speccy on my host machine (Windows 7 x64) states that virtualization is supported but when running speccy on the guest Windows x64 it keeps saying virtualization not supported, which correct me if I'm wrong but if virtualization wasn't enabled in the bios vbox wouldn't be able to run 64bit OS right? I have VT-x enabled in the vbox settings and have tried nested paging both enabled and disabled. I first tried ever setting possible with vbox 4.x and recently updated to 5.0 and tried it all over again but still no luck. I have updated the BIOS to the most recent version. I have spend several days trying to resolve this and am at the breaking point that I'm almost ready to just through this computer out the windows, not really I actually love the computer but this problem has me so frustrated. Please can someone please help me out here. My system is a MSI Z87-G45 Gaming motherboard with an i7 3.5GHz CPU.

Thank you

Ok so I did a little more research on nested virtualization and it is sounding like the Android emulator that comes with Android Studio can't be ran from within a vm, is that correct? Am I able to run a third party emulator like genymotion?

If VBox Virtual Machine never actually supports CPU virtulization.... what is the use of VT-x setting?

I guess nested virtualization is introducing a new machine at third level... and people are doing that
Host -----> VMLevel1 ----> VMLevel2



mine is just Host--->VMLevel1... and i m trying to run android studio in VMLevel1.

AbhayL, that is the same setup I am trying to run as well. I like to run my different development applications from a vm so I don't have to clutter my host computer with a bunch of programs running in the background when I'm not using it but it's starting to sound like I have no other options I could use Android Studio from the vm and then run the emulator from my host computer but I'd like to be able to run the emulators start from AVD Manager. Guess I'll just need to rethink how to best set this up now.

AbhayL wrote:If VBox Virtual Machine never actually supports CPU virtulization.... what is the use of VT-x setting?

The VT-x feature is not for the guest OS, but for the host OS, so you can run the VM code faster, but not for the guest OS to use it.

AbhayL wrote:If VBox Virtual Machine never actually supports CPU virtulization.... what is the use of VT-x setting?

I guess nested virtualization is introducing a new machine at third level... and people are doing that
Host -----> VMLevel1 ----> VMLevel2



mine is just Host--->VMLevel1... and i m trying to run android studio in VMLevel1.

If you are trying to install "HAXM" which I assume requires VT-x inside a VM with VirtualBox, that will NOT work. As stated numerous times before, VirtualBox as of yet does NOT support nested virtualization.