HP ENVY dv6-7252er BIOS Advanced tab

Hi,

I need to unlock HP ENVY dv6-7252er BIOS Advanced tab (link: http://ftp.hp.com/pub/softpaq/sp63501-64...3801.exe).

PS: My laptop has Intel RAID, I'd like to break it. Many forums say I need to change AHCI mode on, instead of RAID mode. If unlocking help, kindly advise.

UPD: My BIOS has no Advcanced tab, neither Intel RST option ROM for break the array.

THANKS!!