Can't boot into installation... Help Needed.

I have a (HP) Compaq Presario CQ56-219WM laptop (http://support.hp.com/us-en/document/c02636087).
I am used unibeast 6.2.0, Elcapiton, Legacy Boot.

Ram: 4gb
Processor: Intel (R) Celeron (R) CPU 900
Bios Version: F.15
Bios Type/Info: InsydeH20 Rev. 3.5

Everything works fine until I try booting into the installation I get the No/Cross out logo ( ⃠ ). I can't change any of the bios settings because I can't access advanced setting/options to change the boot type. I hope someone can...

Can't boot into installation... Help Needed.