gg16

I install mac OSX 10.8.5 in UEFI mode on GPT disk . everything is right but after the installation i restart. boot the usb drive, then choose to boot the hd (clover bootloader) where installed os x (not the installer usb again). only apple logo appears and screen stuck (system boots to a grey apple logo and freezes) i have already install win 8 in uefi mode on gpt disk. how can run mac osx 10.8.5 and win 8 in uefi mode (multiboot) my laptop support uefi os and model is samsung np550p5c-s02in ivy bridge please reply