I have Lenevo Z50-70
4th Generation Intel Core i7-4510U Processor (3.10GHz Turbo, 2.00GHz Base 1600 MHz 4MB)
1TB Hard Drive / Windows 8.1 / Intel Dual Band Wireless-AC 3160
15.6" Full HD 1080p LED Glossy Display (1920x1080) / NVidia 840M 4GB Graphics Card
DVD Recordable Drive (Dual Layer) / Bluetooth Version 4.0
8.0GB PC3-12800 DDR3L SDRAM 1600 MHz Memory

it has windows 8.1 x64 preinstalled ,and i want to install kali as dual boot . i shrinked my C drive , and now i have 100 Gb unallocated I downloaded kali-linux-2.0-amd64 iso, burned into a dvd at 4x checked that was burn correctly, all good.
i go into the bios , disable secure boot, make my dvd\cd as first to boot. all Good .

i restart my notebook, i hear the dvd rom starting to read the dvd, but nothing happens , black screen . what i can do, or what i did wrong