Problem enabling virtualization from bios on Pavilion g6

I am trying to use the virtual box on my PC (pavilion g6). it requires me to enable the virtualization from my bios. I do this but it does not save even when i exit with saving changes. when i check it again i discover it is still disabled

This is making the virtual box not to work.

Please how do i get this enabling to save? I need a solution to this to do my school work.

Thank you