Source : Toshiba Support
Download Drivers Toshiba Satellite L850/L855 for Operating System Windows 7 32bit/64bit
System BIOS
BIOS Version 1.60 upgrade for Satellite L850 (for PSKAA, PSKAC, PSKAE) BIOS 1.60 Windows
USB Driver
Intel Universal Serial Bus 3.0 ( USB3.0 ) USB3.0 Driver Win7 32bit / USB3.0 Driver Win7 64bit
Chipset Driver
Intel Chipset Utility 9.3.0.1020 Chipset Driver Win7 32bit / Chipset Driver Win7 64bit
Display Driver
Intel Display Version 8.15.10.2639 Graphics Driver / Graphics Driver Win7 32bit
AMD Display Version 8.932.5.3 Graphics Driver Win7 32bit
Intel Display Version 8.15.10.2639 Graphics Driver / Graphics Driver Win7 64bit
AMD Display Version 8.932.5.3 Graphics Driver Win7 64bit
Audio Driver
Conexant Audio Version 8.51.2.63 Audio Driver Win7 32bit
ATI HDMI Audio Version 7.12.0.7705 HDMI Audio Driver Win7 32bit
Conexant Audio Version 8.51.2.63 Audio Driver Win7 64bit
ATI HDMI Audio Version 7.12.0.7705 HDMI Audio Driver Win7 64bit
Wireless Driver
Intel Wireless LAN Version 15.0.1.1.0 Intel WLAN Driver Win7 32bit
Realtek Wireless LAN Version 2.00.0017 Realtek WLAN Driver Win7 32bit
Atheros Wireless LAN Version 9.2.0.480.0 Atheros WLAN Driver Win7 32bit
Intel Wireless LAN Version 15.0.1.1.0 Intel WLAN Driver Win7 64bit
Realtek Wireless LAN Version 2.00.0017 Realtek WLAN Driver Win7 64bit
Atheros Wireless LAN Version 9.2.0.480.0 Atheros WLAN Driver Win7 64bit
Intel Wireless Display Download Windows 7 64bit
Intel PROSet Utility Download Windows 7 64bit
Intel PROSet/ Wireless WiMAX Software Download Windows 7 64bit
Ethernet Driver
Atheros LAN Version 2.0.12.13 Ethernet Driver Win7 32bit / Ethernet Driver Win7 64bit
Pointing Driver
Synaptics Touchpad 15.3.39.0 Touchpad Driver Win7 32bit / Touchpad Driver Win7 64bit
Camera Driver
Toshiba Web Camera Software Application V2.0.3.35 Webcam Driver Win7 32bit / Webcam Driver Win7 64bit
Bluetooth Driver
Toshiba Bluetooth Software Application v9.00.00T Bluetooth Driver Win7 32bit / Bluetooth Driver Win7 64bit