Oracle VirtualBox "VT-x is disabled in the BIOS"

Question

I'm getting this error while loading an image from a Oracle virtual box. How can I fix it? I installed virtual box 4.3.12 via a remote desktop connection to a Windows 7 64-bit, 32G RAM computer.

I have checked the Intel Visualization Setting, it says yes to hardware visualization.

I saw this questions up online looks like the same issue. But I am using remote desktop control so I would not be able to change the setting at the restart page. I will be automatically logged off when I restart the this computer.

VERR_VMX_MSR_VMXON_DISABLED when starting an image from Oracle virtual box

Answer 1

if the machine does not require VT-x to work, changing the machine settings can help:

Try to change setting HardwareVirtEx in your virtual machine config file (.vbox).

It's a CPU section/ Looks like this

<Hardware version="2"> <CPU count="1" hotplug="false"> <HardwareVirtEx enabled="false"/> <HardwareVirtExNestedPaging enabled="true"/> <HardwareVirtExVPID enabled="true"/> <HardwareVirtExUX enabled="true"/> <PAE enabled="false"/> <HardwareVirtExLargePages enabled="true"/> <HardwareVirtForce enabled="false"/> </CPU>

from: https://forums.virtualbox.org/viewtopic.php?f=6&t=58820

this can also be set using VBoxManage using:

VBoxManage.exe modifyvm <machine name> --hwvirtex off

or by using the API:
void setHWVirtExProperty(HWVirtExPropertyType property, boolean value)