(Hackintosh) Create USB Bootable Installer Yosemite 10.10
У вашего броузера проблема в совместимости с HTML5
Creating a 10.10 Yosemite USB bootable for a hackintosh using Chameleon this is a app which makes your install easy.
Note don't expect much as its still in beta but at least you can get it to boot and install
Enjoy hope this guide helps you
Link to download Chameleon Installer
http://www.osx86.net/files/download/4075-boot-usb-os-x-yosemite-chameleonpkg/