Request to unlock acer aspire 4520 Hidden menu

Hi!
I want the bios with all hidden options/advanced tab unlocked (if possible).
and the important is to enable option for 'Processor Assisted Virtualization:'

Acer Aspire 4520 - i'm using version 3632 which is exactly this one:

http://global-download.acer.com/GDFiles/...R&SC=AAP_4

Thank you in advance!