thanks to all of you, finally i maneged to install a clean windows 8, i use a original windows 8 64 OEM version, and use a program called Gparted, and i format the partition in NTFS. and after all of this i managed to isntall windows 8.
this looks like a joke but now i have other problem with the notebook, the screen now have tiny vertical lines that are visible when you are mid range, this happen after i was installing speedfan, when installing this program suddenly the screen flashs and there was this vertical lines problem. also this lines have some vibrations that when i drag some folder side to side, i can see strange flicker in this vertical lines.
i try to conect de notebook on the TV via HDMI, and this vertical lines doesnt appear.