Software and Utilities   Auto Scroll Utility for Notebook   Version: 2.10  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit Windows 8.1 64-bit Windows XP 32-bit  1/9/2014  Download Bluetooth and Modem   Broadcom Bluetooth 4.0 driver for Notebook   Version: 12.0.0.7850 / 12.0.0.7820  Windows 8.1 64-bit  2/16/2014  Download Networking: Wireless LAN   Broadcom Wireless LAN Adapter Software for Lenovo B4400, B4400s, B4450s, M4400, M4450, V4400   Version: 6.30.223.143  Windows 8.1 64-bit  2/20/2014  Download Audio   Conexant Audio Driver Software for Lenovo B4400s, B4450s, E4430, M4400s   Version: 8.64.62.50  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit  2/13/2014  Download Audio   Conexant Audio Driver Software for Notebook   Version: 8.65.9.0  Windows 8.1 64-bit  2/13/2014  Download Camera and Card Reader   Genesys Media Card Reader Driver for Notebook   Version: .3.0.8  Windows 8.1 64-bit  2/17/2014  Download Software and Utilities   Hotkey Features Integration for Notebook   Version: 5.33.0000  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit Windows 8.1 64-bit Windows XP 32-bit  12/30/2013  Download Camera and Card Reader   Integrated Camera Driver for Lenovo B4400, B4400s, B490s, E4430   Version: 5.13.415.31/1.13.430.3/6.0.1330.5/3.4.5.11  Windows 7 32-bit Windows 7 64-bit  11/12/2013  Download Camera and Card Reader   Integrated Camera Driver for Notebook   Version: 5.13.911.3  Windows 8.1 64-bit  2/16/2014  Download Camera and Card Reader   Integrated Camera Driver for Notebook   Version: 5.13.911.31  Windows 8.1 64-bit  2/17/2014  Download Chipset   Intel Chipset Support for Lenovo B4400, B4400s, M4400, M4400s, V4400   Version: 9.4.0.1017  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit  7/31/2013  Download Chipset   Intel Chipset Support for Lenovo B4400, B4400s, E4430, M4400, M4400s, V4400, Zhaoyang K4450, K2450   Version: 9.4.0.1026  Windows 8.1 64-bit  2/20/2014  Download Display and Video Graphics   Intel Display Driver for Lenovo B4400s, E4430, M4400s   Version: 9.18.10.3272  Windows 7 32-bit  11/13/2013  Download Display and Video Graphics   Intel Display Driver for Notebook   Version: 10.18.10.3325  Windows 8.1 64-bit  2/13/2014  Download Chipset   Intel Management Engine Interface Driver for Notebook   Version: 9.5.14.1724  Windows 8.1 64-bit  2/17/2014  Download Storage   Intel SATA Controller AHCI Driver for Notebook   Version: 12.8.0.1016  Windows 8.1 64-bit  2/16/2014  Download Software and Utilities   Intel Smart Connect Technology 4.2 for Lenovo B4400s, M4400, M4450, M4400s, V4400, Zhaoyang K4450, K2450   Version: 4.2.41.2549  Windows 8.1 64-bit  2/20/2014  Download Display and Video Graphics   Intel Wireless Display for Lenovo M4400s   Version: 4.2.19.0  Windows 8 64-bit  2/10/2014  Download Power Management   Lenovo Power Management Driver for Notebook   Version: 1.67.04.04  Windows 7 32-bit Windows 7 64-bit Windows 8 32-bit Windows 8 64-bit Windows 8.1 32-bit Windows 8.1 64-bit Windows Vista 32-bit Windows Vista 64-bit Windows XP 32-bit  12/5/2013  Download Software and Utilities   Lenovo QuickControl for Notebook   Version: 2.00  Windows 8 32-bit Windows 8 64-bit Windows 8.1 32-bit Windows 8.1 64-bit  6/17/2014  Download Display and Video Graphics   NVIDIA Optimus Display Driver for Notebook   Version: 9.18.13.2762  Windows 7 64-bit Windows 8 64-bit  2/13/2014  Download Display and Video Graphics   NVIDIA Optimus Display Driver for Notebook   Version: 9.18.13.2762  Windows 8.1 64-bit  2/13/2014  Download Bluetooth and Modem   Realtek Bluetooth 4.0 driver for Lenovo   Version: 3.754.754.080913  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit  11/13/2013  Download Bluetooth and Modem   Realtek Bluetooth 4.0 Driver for Notebook   Version: 3.754.754.082813 / 1.3.754.3  Windows 8.1 64-bit  2/16/2014  Download Networking: LAN (Ethernet)   Realtek Ethernet Controller Driver for Lenovo B4400, B4400s, E4430, M4400, M4400s, M4450, V4400   Version: 7.70.314.2013  Windows 7 32-bit Windows 7 64-bit  7/31/2013  Download Networking: LAN (Ethernet)   Realtek Ethernet Controller Driver for Lenovo   Version: 8.15.410.2013  Windows 8 64-bit  7/31/2013  Download Networking: LAN (Ethernet)   Realtek Ethernet Controller Driver for Lenovo B4400, B4400s, B4450s, E4430, M4400, M4450, M4400s, V4400, Zhaoyang K4450, K2450   Version: 8.18.621.2013  Windows 8.1 64-bit  2/18/2014  Download Networking: Wireless LAN   Realtek Ethernet Controller Driver for Notebook   Version: 8.18.621.2013  Windows 8.1 64-bit  2/17/2014  Download Networking: Wireless LAN   Realtek Wireless LAN Adapter Software for Lenovo   Version: 1.00.0226 / 2010.7.816.2013  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit  2/10/2014  Download Networking: Wireless LAN   Realtek Wireless LAN Adapter Software for Lenovo B4400, B4400s, B4450s, E4430 , M4400, M4450, M4400s, V4400, Zhaoyang K4450, K2450   Version: 2012.2.827.2013 / 1.00.0227  Windows 8.1 64-bit  2/20/2014  Download Mouse and Keyboard   Synaptics Touchpad Software for Lenovo   Version: 16.6.4.34  Windows 7 32-bit Windows 7 64-bit Windows 8 64-bit  11/7/2013  Download Mouse and Keyboard   Synaptics Touchpad software for Notebook   Version: 17.0.9.1  Windows 8.1 64-bit  2/17/2014  Download