Hi all, I've got hard problem for me, tried some configs in Bios but still got a problem. My problem looks like this, every time i try to boot my prepared Yosemite Install screen goes black with one " - " in first line and that's all. Pendrive won't boot any further. I checked if problem is with my pendrive but on other computer it boots good. I made Virtualization to OFF, Secure boot to off (also cleared keys), changed OS Type to other OS and still got the same problem Any other ideas?