Driver Lenovo G400s Windows 7 [Tested on Windows 7 32/64-bit]

On February 2014, Some one needs my help to downgrade operating system from Windows 8 to windows 7. Before instal windows 7 on Lenovo Ideapad G400s, i check specification and also check driver support in it. First, i do not sure that all driver can be installed and success on windows 7, but i  try to test it.

The result after instal Windows 7. We need some driver to instal them. I download the driver from lenovo source, finally all drivers successfully installed.

Note:
There are twoo type of VGA on  Lenovo G400s.

1. VGA Graphic with Intel HD 4000 Graphic series
2. VGA Graphic with NVIDIA® GeForce® GT720

Driver For Windows 7 32-bit / 64Bit

• Intel Chipset Driver. 1,5MB. Download
• AUDIO//Conexant Audio Driver for Windows 7. 82MB. Download
• Bluetooth Driver (Liteon/Atheros, CyberTan/Broadcom). 320MB. Download 
• Camera Driver (AVC, Bison, Chicony, Liteon-on). 25MB. Download 

 VGA Driver for Intel

1. For 32-Bit. Intel VGA Driver [Intel HD Graphics 4000] 69MB. Download
2. For 64-Bit. Intel VGA Driver [Intel HD Graphics 4000] 87MB. Download

 VGA Driver for NVidia

1. 32-Bit. NVIDIA® GeForce® GT720 Driver. 145MB. Download
2. 64-Bit. NVIDIA® GeForce® GT720 Driver. 195MB. Download

• Touchpad Driver (Synaptics, Elantech). 125MB. Download
• Atheros LAN Driver. 3,2MB. Download

Wireless Driver

1. Intel WLAN Drive. 256MB. Download 
2. WLAN Driver (Liteon, CyberTan). 80MB. Download

• Intel USB 3.0 Driver. 4.8MB. Download

 Note:
I suggest  to instal driver as needed laptop only. Installing all software or driver on laptop, it can make laptop work slowly.