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Why isn't VirtualBox running virtual machines for me?

I have tried Microsoft XP, Vista, 7, 8 and Mac OS X all of which have failed to run for me. That is they 'start' when I send the command to start but then they abort or just fail to continue running immediately after I've started them.

My Host OS is 12.10.

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How did you create your VMs? – Takkat Dec 23 '12 at 11:03
I just followed the steps given by the New Virtual Machine Wizard. – Brenton Horne Dec 23 '12 at 11:06
Which version are you using? Are you using the version in the Ubuntu software-center or the more recent one from the VirtualBox website? – Simon Hoare Dec 23 '12 at 12:57
The most recent one on the website. – Brenton Horne Dec 23 '12 at 13:15

What kind of BIOS do you have? Do you get any errors?

It is possible that you need to enable virtualization technology in your BIOS. For example: in my ASUS EFI BIOS i had to enable "Intel Virtualization Technology" in "Advanced" tab before VirtualBox could work.

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BIOS, what's BIOS? Do elaborate. – Brenton Horne Dec 23 '12 at 12:17
The thing that loads before the OS. with logo of your motherboard's manufacturer and words "press DEL to enter the BIOS" (or something similar) in the bottom part of the screen. – stee1rat Dec 23 '12 at 12:23
It doesn't even show up, that's how 'immediately after' it fails. – Brenton Horne Dec 23 '12 at 12:26
No no, i mean when you boot your computer, not virtual machine in virtualbox. – stee1rat Dec 23 '12 at 12:28
Oh rofl, well I'll try that now, thanks. – Brenton Horne Dec 23 '12 at 12:30

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