VT-x is disabled in BIOS

[skasberger]

When starting the VM on my ubunut 64bit system, following error was thrown.

Error message:

Failed to open a session for virtual machine ContentMine-VM.

VT-x is disabled in the BIOS.
(VERR_VMX_MSR_VMXON_DISABLED)

Details:

Result Code: 
NS_ERROR_FAILURE (0x80004005)
Component: 
Console
Interface: 
IConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}

[emanuil-tolev]

CPU Virtualisation support is disabled in your computer's BIOS settings. It's a setting that allows the processor to help (immensely) with running virtual machines at palatable speeds.

You'd need to enable it from your BIOS - here's a generic article about it http://www.howtogeek.com/213795/how-to-enable-intel-vt-x-in-your-computers-bios-or-uefi-firmware/ but the specific steps really depend on your specific computer.

[skasberger]

solved it via help from http://superuser.com/questions/22915/how-do-i-enable-vt-x
enabled virtualization in BIOS, shut down for 30 seconds (unplugged cable too) and started again.
should maybe be mentioned in documentation.