Hidden virtualization option

Hello guys
I have a positive bgh model c-500 notebook. At work I need to use virtualization, according to what I have read and validation programs, this model has virtualization but it is necessary to activate it from the bios. The problem is that when I access the bios, I do not see options to virtualize
This can be due to two options
1) it is an old version of bios and it does not come out
2) I need to unlock more options to my bios, with a series of keys, as I have seen in other brands such as php.

If someone could guide me on this model or something similar happened

Thanks a lot!!