Lenovo IdeaPad U400 Notebook Driver for Windows

Audio

Driver	Operating System	Released
Conexant Audio Driver for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : Audio:8.54.42.0/SRS:1.11.6700  Conexant Audio Driver	Windows 8 32-bit Windows 8 64-bit	23 Aug 2012
Conexant Audio Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 8.54.19.0  Conexant Audio Driver	Windows 7 32bit Windows 7 64-bit	23 Nov 2011

BIOS

Driver	Operating System	Released
Bios update is not required for this product - Notebook, Desktop ... Learn more Version : N/A		N/A

Camera and Card Reader

Driver	Operating System	Released
Camera Driver (Bison,Chicony) for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 2.22.23.3/6.0.1304.0  Camera Driver (Bison, Chicony)	Windows 8 32-bit Windows 8 64-bit	12 Dec 2012
Camera Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 2.18.23.104/5.8.56001.0/2.18.23.104  Camera Driver	Windows 7 32bit Windows 7 64-bit	24 Aug 2011

Chipset

Driver	Operating System	Released
Intel Chipset driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 9.2.0.1030  Intel Chipset driver	Windows 7 32bit Windows 7 64-bit	24 Aug 2011
Intel Chipsets driver for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 9.3.0.1021  Intel Chipsets driver	Windows 8 32-bit Windows 8 64-bit	23 Aug 2012
Intel Management Engine Driver for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 8.1.0.1263  Intel Management Engine Driver	Windows 8 32-bit Windows 8 64-bit	23 Aug 2012

General Information

Driver	Operating System	Released
Hotfix for Microsoft Windows 7 (32-bit, 64-bit) - Notebook ... Learn more Version : KB2482122  Hotfix for 32-bit Windows  Hotfix for 64-bit Windows	Windows 7 64-bit	25 Nov 2012

Mouse and Keyboard

Driver	Operating System	Released
TouchPad Driver (Synaptics, Cypress) for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 15.3.18.1/2.3.6.28  TouchPad Driver (Synaptics, Cypress)	Windows 7 32bit Windows 7 64-bit	08 Feb 2012
TouchPad Driver (Synaptics, Cypress) for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 16.2.10.13/2.3.7.104  Touchpad Driver (Synaptics, Cypress)	Windows 8 32-bit Windows 8 64-bit	12 Dec 2012

Networking: LAN (Ethernet)

Driver	Operating System	Released
Intel Ethernet Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 11.12.36.0  Intel Ethernet Driver	Windows 7 32bit Windows 7 64-bit	24 Aug 2011
Intel LAN Driver for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : Control pannel:17.2.153.0/Device manager:12.1.77.0  Intel LAN Driver	Windows 8 32-bit Windows 8 64-bit	23 Aug 2012

Networking: Wireless LAN

Can't figure out what is your Wireless LAN adapter? Click here

Driver	Operating System	Released
Intel Wireless WiFi Link Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 14.2.0.10  Intel Wireless WiFi Link Driver	Windows 7 32bit Windows 7 64-bit	27 Nov 2011
Wireless LAN driver for Windows 8 (32-bit, 64-bit) - Desktops, Notebooks (Windows 8 Inbox driver) ... Learn more Version : N/A	Windows 8 32-bit Windows 8 64-bit	N/A
Wireless WiFi Link Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 9.2.0.105/5.100.82.15/14.2.0.10  Wireless WiFi Link Driver	Windows 7 32bit Windows 7 64-bit	23 Nov 2011

Others

Driver	Operating System	Released
Intel Management Engine Interface Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 7.0.0.1144  Intel Management Engine Interface Driver	Windows 7 32bit Windows 7 64-bit	24 Aug 2011
SATORI USB 3.0 Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 2.0.34.0  SATORI USB 3.0 Driver	Windows 7 32bit Windows 7 64-bit	24 Aug 2011

Power management

Driver	Operating System	Released
Lenovo Energy Management Driver for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 6.0.2.5  Lenovo Energy Management Diver	Windows 7 32bit Windows 7 64-bit	06 Nov 2011
Lenovo Energy Management for Microsoft Windows 8 (32-bit, 64-bit) - Notebook... Learn more Version : 8.0.2.20  Lenovo Energy Management	Windows 8 32-bit Windows 8 64-bit	06 Sep 2012

Recovery

Driver	Operating System	Released
Lenovo Onekey Recovery for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400, Z475, Z575 ... Learn more Version : 7.0.0.2525  Lenovo Onekey Recovery for 32-bit Windows  Lenovo Onekey Recovery for 64-bit Windows	Windows 7 32bit Windows 7 64-bit	16 Sep 2012

Software and Utility

Driver	Operating System	Released
CSUP for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 201109  CSUP	Windows 7 32bit Windows 7 64-bit	06 Nov 2011
Lenovo EE Boot Optimizer for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 0.0.1.9  Lenovo EE Boot Optimizer	Windows 7 32bit Windows 7 64-bit	06 Nov 2011
RapidDrive for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 1.0.0.7  RapidDrive	Windows 7 32bit Windows 7 64-bit	06 Nov 2011
Service Modify For EE for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 1.0.0.2  Service Modify For EE	Windows 7 32bit Windows 7 64-bit	06 Nov 2011
User Guide Program - Windows 7 (32-bit, 64-bit) ... Learn more Version : V1.0.0.6  User Guide Program	Windows 7 32bit Windows 7 64-bit	06 Nov 2011
YOUCAM for Microsoft Windows 7 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 3.1.3728  YOUCAM	Windows 7 32bit Windows 7 64-bit	06 Nov 2011

Storage

Driver	Operating System	Released
Intel AHCI driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 10.5.0.1026  Intel AHCI driver	Windows 7 32bit Windows 7 64-bit	24 Aug 2011
Intel AHCI driver for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 11.5.4.1001  Intel AHCI driver	Windows 8 32-bit Windows 8 64-bit	12 Dec 2012

Video

Driver	Operating System	Released
AMD Graphics Driver - Windows 7 (32-bit, 64-bit) ... Learn more Version : 8.851.0.0  AMD Graphics Driver	Windows 7 32bit Windows 7 64-bit	27 Nov 2011
AMD Seymour Graphics Driver for Microsoft Windows 8 (32-bit, 64-bit) - IdeaPad U400 ... Learn more Version : 9.0.0.0  AMD Seymour Graphics Driver	Windows 8 32-bit Windows 8 64-bit	12 Dec 2012