Intel VT-x disappeared after upgrading to Windows 8

Posted by StepTNT on Super User See other posts from Super User or by StepTNT
Published on 2012-11-05T19:32:06Z Indexed on 2012/11/17 5:04 UTC
Read the original article Hit count: 455

Filed under:

virtualbox

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windows-8

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virtualization

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intel

I've upgraded to Windows 8 some weeks ago (MSDNAA!) and today, while I was trying to run a VM, I've noticed that VT-x is disabled.

Now, Hyper-V works without problems, as I've tried emulating Win7 and WP8; but VirtualBox says that VT-x is disabled and it can't run my VM.

Just to double check, I've run Securable by GRC and the Intel utility and both says that I've got VT-x off.

Here comes the problem:
VT-x is ON in my BIOS, and it worked flawlessly before upgrading to Windows 8!

Any kind of suggestion?

EDIT: My CPU supports VT-x: http://ark.intel.com/products/52219

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