In the past, nearly all Sony VAIO computers have had hardware virtualization technology (VT) disabled at the factory, the exception being the new BZ range, which uses an Aptio BIOS by American Megatrends, rather than the customized Phoenix BIOS common on older models. However, on November 3, 2009, Sony released the following information on the Vaio-Link.com website:
A number BIOS updates have been released which provide the option to enable VT in the BIOS. If a VT-enabling bios has been published for your VAIO model, you can find it in the Updates section.
The released BIOS updates were provided for most of the VAIO range, and as expected, it will only list the "Enable VT" option in the BIOS if the CPU supports it.