Cyber Dimensions....

Sony has disabled hardware virtualization in their laptop range, thus rendering Windows XP Mode in Windows 7, and many other Virtual Machine Based products, such as VMware and Virtualbox pretty much useless.

Sony claims that they are disabled for "security" reasons - which doesn't really seem to make any sense; Sony has also said that they will re-enable hardware virtualization on "select" laptops from the Vaio range. XP Mode isn't really a hugely adopted feature, but it's pretty upsetting for Sony users who had intended to use it, or wanted to use virtualization on their machines.

more @ Sony laptops disable Windows 7's XP Mode