asus bu400a

Hi, Could somebody help me with installing drivers for Asus BU400A? Intel® Core™ i5 3427U Intel® Chief River Chipset HM77/QM77 DDR3 1600 MHz SDRAM, 4 GB Integrated Intel® HD Graphics 4000 Networking: Integrated 802.11 a/b/g/n Built-in Bluetooth™ V4.0 *3 10/100/1000 Base T I've tried...