Hello i have Acer Aspire E1-510P-2671 windows 8 and my pc do restart all the time and write starting automatic repair and then a black screen appears and nothing happen. I have windows 7 installation disc i entered it in my pc i enter in bios and made the correct setting but nothing appears . I made also a boot usb flash this is working too (tested) and pc cant read this too. I try to recover i press alt+f10 i enavle d2d recovery f12 boot menu and nothing happens just restart and then black screen what i can do ?