first hackintosh build, not booting !

So I followed this guide Guide step by step I think ... I don't know if it's a skip but when reaching step 15 where it said " Clover Note: UniBeast delivers basic bootloader ... " I didn't know what to do, so I just continue the guide (I know its a boot part step and I have a problem booting, but that's why I'm here). so when booting from laptop (Lenovo Y50-70) at first the USB flash didn't get recognized, from the BIOS I switched the USB mode to legacy from UEFI, now it's being recognized ! but when clicked this shows up ! (laptop specs: Lenovo Y50-70 intel i7 4720 HQ, GTX 960M, 16GB RAM, windows 10 still installed on SSD ^{only drive available} ).

After selecting to boot from USB flash drive.