Lenovo ThinkPad-E550 Windows 7/8/8.1 Drivers

I only listed important driver for this model, there are certain tools and utility I skipped mainly because it is not actually a driver, but just a firmware and stock software and utility which does not affect your laptop devices functionality.

Note:
Windows 8 and Windows 8.1 uses similar drivers.

Chipset
Intel(R) Chipset Device Software for Windows 8.1 (64-bit), 7 (32-bit, 64-bit)
Download (2.9mb)

MEI 
Intel(R) Management Engine Interface for Windows 8.1 (64-bit), 7 (32-bit, 64-bit) 
Download (85mb) 

Graphic
If your model use switchable graphic, install both driver.
Intel HD Graphics Driver for Windows 7 (32-bit) 
Intel HD Graphics Driver for Windows 8.1 (64-bit), 7 (64-bit)
AMD Video Driver for Windows 8.1 (64-bit), 7 (32-bit, 64-bit)

Fingerprint
Lenovo Fingerprint Manager for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit) - Notebook
Download (17.6mb)

Audio
Conexant Audio Driver for Windows 8.1 (64-bit), 7 (32-bit, 64-bit)
Download (288.5mb)

Camera/Webcam
Realtek/SunplusIT Integrated Camera Driver for Windows 8.1 (64-bit), 7 (32-bit, 64-bit)
Download (19.4mb)

LAN - Ethernet
Intel PRO/1000 LAN Adapter Software (Gigabit Ethernet Driver) for Windows 8.1 (64-bit), 7 (32-bit, 64-bit) 
Download (24.5mb) 

USB
Lenovo USB Display Driver for Windows 10 (32-bit, 64-bit), 8.1 (32-bit, 64-bit), 8 (32-bit, 64-bit), 7 (32-bit, 64-bit) 
Download (34.7mb) 

Touchpad
ALPS ThinkPad UltraNav Driver for Windows 8.1 (64-bit), 7 (32-bit, 64-bit) 
Download (10.9mb)

Keyboard
Lenovo Enhanced Performance USB Keyboard for Windows 8.1 (32-bit, 64-bit), 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - Dekstop, Laptop, Workstation
Download  (14.3mb)

Card Reader
Realtek Multi-Card Driver for Windows 8.1 (64-bit), 7 (32-bit, 64-bit) 
Download (61mb)

Wireless:
There are 3 types of Wireless available for this model, choose one base on your specification, you can identify it using hardware ID method, or test which driver work for you.
Windows 8.1 (64-bit), 7 (32-bit, 64-bit) - 

• Intel 7265/3160 Wireless LAN Driver
• Realtek 8723BE Wireless LAN Driver
• Broadcom 43162 Wireless LAN Driver  

Bluetooth:
There are 4 types of Bluetooth available for this model, choose one base on your specification, you can identify it using hardware ID method, or test which driver work for you.
Windows 8.1 (64-bit), 7 (32-bit, 64-bit) - Normally the Bluetooth and the wireless uses similar hardware vendor.

• Intel(R) 3160 Wireless Software for Bluetooth(R) Technology
• Intel(R) 7265 Wireless Software for Bluetooth(R) Technology  
• Realtek 8723BE Bluetooth Driver
• Broadcom 43162 Bluetooth Driver  

Power Manager:
First Install Power Management driver then install power manager software:

Windows 7 (32-bit, 64-bit)
Lenovo Power Management Driver
Power Manager Software

Utility
Utility is not a critical or important driver, but a handy tools that you can use with your OS. This is optional download, use this if you love the feature.
Hotkey Features Integration for Windows 10 (32-bit, 64-bit), 8.1 (64-bit), 8 (64-bit), 7 (32-bit, 64-bit)  
Auto Scroll Utility for Windows 10 (32-bit, 64-bit), 8.1 (64-bit), 8 (64-bit), 7 (32-bit, 64-bit), XP 
REACHit for Windows 8.1 (32-bit, 64-bit), 8 (32-bit, 64-bit), 7 (32-bit, 64-bit)
Lenovo QuickControl for Windows 8.1 (32-bit, 64-bit), 8 (32-bit, 64-bit)

Others
- It does not affect your system if you does not use this drivers/software, just use it if you need it.

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Monitor:
ThinkPad Monitor INF File for Windows 8.1 (64-bit), 8 (64-bit), 7 (32-bit, 64-bit) 
WHAT THIS PACKAGE DOES

  This package installs the software (monitor information file) which defines
  the following items for ThinkPad LCD.

  - Monitor INF (Information file for the maximum resolution and monitor naming)

  - Windows ICM (Image Color Management file for ICC Color Profile)
    You can obtain an accurate color representation with the Windows ICM file.

  If you use the preload environment, you do not need this package. This package
  is required when you install Windows OS without the preload image.

  If this package has been installed, updating (overwrite-installing) this
  package will fix problems, add new functions, or expand functions as noted
  below. 

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 (English) Rescue and Recovery 4.52 for Windows 7
The ThinkVantage(R) Rescue and Recovery(R) program is an essential tool that enables users and administrators to restore backups, access files, diagnose problems, and make Ethernet connections when the Microsoft(R) Windows(R) operating system cannot start or run correctly. It also
enables administrators to deploy critical updates to systems that are corrupted or off the network. In addition, it can automatically apply patches to a system when a restore operation is performed.

The Rescue and Recovery program provides a workspace that runs independently of the Windows operating system. Thus, the Rescue and Recovery workspace enables you to perform rescue and recovery operations that might not be accomplished in the Windows operating system.

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