1.If you hear sound and can connect to wireless no need to install wireless and audio drivers.
2.If at the device manager there are no yellow mark on graphics no need to install unless you see the screen pixel or low performance.
3. Right click on the installation file and select "run as administrator" to install.
CHIPSET:
IntelChipset SW Installation Utility for windows 7
Download
Intel Video Driver.
Intel Media accelerator 4500M
Download (windows 7)
Download (Windows Vista)
or
Automatically detect drivers
Realtek Card Reader.
Download
Bluetooth Driver: (7/Vista/XP)
Download
Bluetooth Stack For windows 7
Download
Realtek Wireless LAN
Download
Atheros Wireless LAN
Download
Intel Wireless LAN (Vista, 7)
Download
Intel Matrix Storage Manager
Download Windows 7
Download Windows XP/Vista/7
Toshiba HDD protection for Windows 7
Download
Modem Driver Windows 7
Download
MODEM Set Region (windows xp/vista and 7)
Download
WEBCAM Application for Windows 7/Vista/XP
(32-bit 64-bit)
Download
Touchpad (windows 7)
Download
Realtek Audio Drivers
(32-bit 64-bit)
Download