Hello guys, Is there anyone know to recovering bios for Acer 4750, mine gone bad after updating bios via windows, hang up on bios menu and only beeping when i pressed keyboard and can't boot to windows too (splash bluescreen 0x0000007b) when i removed the hdd, i still can boot to usb and doing bios flashing with other bios file, but it's just the same, don't solve the problem I hope to get the answer, thanks...