Below are the original drivers for Lenovo B460e which also can be found on the official Lenovo Website, I arrange all the driver file base on the installation order.
Original Driver Windows XP and 7
Chipset
Intel Chipset Installation Utility (HM55 Chipset)
Windows XP - Windows 7 32/64-bit
SATA
Intel AHCI Driver
Windows XP - Windows 7 32/64-bit
Audio
Conexant High Definition Audio Driver
Windows XP - Windows 7 32/64-bit
Webcam/Camera
Camera Driver for Microsoft Windows
Windows XP - Windows 7 32/64-bit
Graphic - On-board (Intel)
Intel Mobile 4 Series graphic Driver (GM45)
Windows XP - Windows 7 32-bit - Windows 7 64-bit
Graphic - Nvidia
Nvidia Display Drivers
Windows XP - Windows 7 32-bit - Windows 7 64-bit
TouchPad
Elan Tech Touchpad Driver
Windows XP - Windows 7 32/64-bit
LAN
Realtek Local Area Network Driver
Windows XP - Windows 7 32/64-bit
Wireless
Broadcom Wireless LAN Driver
Windows XP - Windows 7 32/64-bit
Camera/Website
Camera Driver for Windows
Windows XP - Windows 7 32/64-bit
Software
Lenovo Energy Management
Windows XP - Windows 7 32/64-bit
Windows 8 Upgrade
You will need to download the drivers from the devices manufacture website for the latest drivers becuase lenovo does not provide updates for Windows 8 or 8.1
Chipset:
Intel Chipset Device Software (INF Update Utility)
This software will install the latest chipset driver for Windows 8.
Download from Intel Website : Download Link
LAN/Ethernet
Realtek 8138/8169/8168 Ethernet Controller
Download from Realtek : Download Link
Graphic
Intel GM45 : read installation Instruction Here.
Graphic
Nvidia - Let Nvidia detect and determine Windows 8 driver for you : Link
Audio: Automatically Installed
Webcam : use Windows 7 Driver
Touchpad : use Windows 7 Driver
Wireless : Automatically Installed or Use Windows 7 Driver
Lenovo Energy Management
Windows 8
Thinkvantage Technology
Windows 7 and Windows 8
Original Driver Windows XP and 7
Chipset
Intel Chipset Installation Utility (HM55 Chipset)
Windows XP - Windows 7 32/64-bit
SATA
Intel AHCI Driver
Windows XP - Windows 7 32/64-bit
Audio
Conexant High Definition Audio Driver
Windows XP - Windows 7 32/64-bit
Webcam/Camera
Camera Driver for Microsoft Windows
Windows XP - Windows 7 32/64-bit
Graphic - On-board (Intel)
Intel Mobile 4 Series graphic Driver (GM45)
Windows XP - Windows 7 32-bit - Windows 7 64-bit
Graphic - Nvidia
Nvidia Display Drivers
Windows XP - Windows 7 32-bit - Windows 7 64-bit
TouchPad
Elan Tech Touchpad Driver
Windows XP - Windows 7 32/64-bit
LAN
Realtek Local Area Network Driver
Windows XP - Windows 7 32/64-bit
Wireless
Broadcom Wireless LAN Driver
Windows XP - Windows 7 32/64-bit
Camera/Website
Camera Driver for Windows
Windows XP - Windows 7 32/64-bit
Software
Lenovo Energy Management
Windows XP - Windows 7 32/64-bit
Windows 8 Upgrade
You will need to download the drivers from the devices manufacture website for the latest drivers becuase lenovo does not provide updates for Windows 8 or 8.1
Chipset:
Intel Chipset Device Software (INF Update Utility)
This software will install the latest chipset driver for Windows 8.
Download from Intel Website : Download Link
LAN/Ethernet
Realtek 8138/8169/8168 Ethernet Controller
Download from Realtek : Download Link
Graphic
Intel GM45 : read installation Instruction Here.
Graphic
Nvidia - Let Nvidia detect and determine Windows 8 driver for you : Link
Audio: Automatically Installed
Webcam : use Windows 7 Driver
Touchpad : use Windows 7 Driver
Wireless : Automatically Installed or Use Windows 7 Driver
Lenovo Energy Management
Windows 8
Thinkvantage Technology
Windows 7 and Windows 8