How to enable hardware virtualization on Asus motherboard

I have an i7 2600K and P8Z68-V LE. It should be similar in your computer. The hardware virtualization setting is located in Advanced mode->Advanced tab->CPU Configuration-> Intel Virtualization Technology According to this page, your i7 2600 will support VT-x and VT-d. My "K" (unlocked version) only supports VT-X (so Intel can still sell Xeons) so yours may look a bit different, but it will be in the same place.

The Asus Bios Utility said VT-x was supported but I couldn't find the setting to Enable Virtualization.

After an hour of head banging I noticed the scroll bars - little thin things, am sure the designer thought he was very clever.

For the ASUS P9X79-WS with UEFI Bios ver. 4802 x64, enable VT-D is found under:

Advanced Mode\System Agent Configuration\Intel(R) VT-d,
not under Advanced\CPU Configuration\Intel Virtualization Technology as expected.

(Xeon E5-2620 v2. 2.1 GHZ supports VT-d)

I had to reset this setting after a power outage. When I tried to re-start a virtual machine with ESXI 6.0 gave me the purple screen of death (Exception 14 Page Fault). This fortunately fixed the issue.