
I think I have everything setup as I have done in the past with my prior system. I know the i7-4770k doesn't support the VT-d technology, but I didn't think that was necessary to run a guest like this-just VT-x. Any advice what steps to take next? I ran a program I saw recommended called SecurAble and it indicated there was hardware virtualization, though it said it can't verify if it's locked or not (said it needs a 32-bit OS or something to do this). I don't have any other virtualization technology running on this machine (that I'm aware of) - I verified Hyper-V was not enabled as a feature in the OS, and I don't have anything from VMware or other such technology running on this. Unable to boot - please use a kernel appropriate for your CPU." Oracle VM VirtualBox, or simply VirtualBox, is a free, open-source virtualization application that allows anyone, from beginners to advanced users, to run other OSes on Windows, macOS, and most Linux distributions. "This kernel requires an x86-64 CPU, but only detected an i686 CPU. On attempting to boot off the 64-bit Ubuntu 13.10 desktop ISO media (I also tried 13.04 64-bit), I get this message before it gets far in the boot process at all (before any prompts for me to interact with it while it's still loading off the ISO media: In spite of setting up things as I did on my old system where I could run 64-bit guests fine with more than one CPU, this one stone walls me.

After downloading the iso file, you must add Kali Linux as an operating system in VirtualBox software. Create a virtual machine for Kali Linux in VirtualBox. I also setup the usual stuff I have in the past with my older machine (was a Core i7-920) regarding guest system options such as VT-x, Nested Paging and PAE/NX. Depending on your operating system, you can choose 32 or 64 bit version. I setup an Ubuntu guest and gave it 4GB RAM and 2 CPUs. The motherboard does have virtualization enabled in the BIOS-I double checked that.

The hardware is an ASUS Maximus VI Hero with 16GB RAM installed and a Core i7-4770k processor.

DOWNLOAD VIRTUALBOX 64 BIT LINUX INSTALL
I hadn't tried to install VirtualBox on this particular new hardware prior to upgrading to 8.1, but it did install fine as well as the VirtualBox extensions.
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I installed VirtualBox 4.3.0 r89960 onto a machine I recently built (and also upgraded to Windows 8.1 Pro from 8 Pro).
