I have an Asus k551ln... I boot from usb flash to install windows 8.1, there is an error says the system can't be installed because *something* GPT partition i don't remember... i restarted the computer and went to the bios settings, changed the booting priority then saved and restart..... it won't boot, just a black screen. Notes: have 1TB hd and 24 ssd.. i made a clean partition on the usb flash but didn't do (convert gpt). i have formatted a partition from the hd and the ssd. I think it's something related to the UEFI or bios thing.. somebody help me please!