Adaptive Brightness Registry Patch for Windows 8.1 (32-bit, 64-bit) - ThinkPad 8, ThinkPad 10, Yoga, X1 Carbon (Machine types: 20A7, 20A8)
NameOperating SystemVersionReleasedAdd to
download list
Adaptive Brightness Registry Patch
305.9 MB
1.220 May 2014
README for Adaptive Brightness Registry Patch
4.6 KB
1.220 May 2014

This package contains the following support module.

  • This registry patch is to customize ALS (Ambient Light Sensor) driver's parameter for Windows 8.1 Adaptive Brightness function.
Supported System
Supported Operating Systems
Summary of Changes
Installation Instructions


Supported System
  • ThinkPad 8
  • ThinkPad 10
  • ThinkPad S1 Yoga
  • ThinkPad Yoga
Supported Operating Systems
  • Microsoft Windows 8.1 32-bit, 64-bit
Summary of Changes


  • < > Package Version number
  • ( ) Build ID for administrative purpose
  • [Important] Important update
  • (New) New function or enhancement
  • (Fix) Correction to existing function

Version 1.2

  • [Important]
    Removed support for ThinkPad Twist.
    For ThinkPad Twist, Twist S230u, another package, Adaptive Brightnes, Registry Patch for ThinkPad Twist, Twist S230u version 1.2 (OSFW03WW),
  • (New) Added support for ThinkPad 10.
  • (New) Added support for ThinkPad X1 Carbon (Machine types: 20A7, 20A8).
  • [Important] Added support for Microsoft Windows 8.1 32-bit.
  • (New) Added support for ThinkPad 8.
  • (New) Added support for ThinkPad Twist.
  • (New) Initial release for ThinkPad S1 Yoga, Yoga.
Installation Instructions


  • This software can work correctly on Lenovo computers listed above.
  • If you use the Product Recovery function shipped with your computer to restore the Windows preload environment, you do not need this package. This package is required when you install Windows Operating Systems without the Product Recovery function.
Manual Install

This section assumes to use Internet Explorer and Windows Explorer.

[Downloading file]

  1. Select the underlined file name. Once this is done, some pop-up windows will appear.
  2. Follow the instructions on the screen.
  3. In the window to choose Run or Save, select Save.
  4. Choose the folder you would like to download the file to, and select Save. A different window will appear and the download will begin and complete. Once the download has completed, there may or may not be a message stating that the download completed successfully.

[Installing files]

  1. Make sure to be logged on with an administrator account.
  2. Locate the folder where the file was downloaded.
  3. Locate the file that was downloaded and double-click/double-tap it.
  4. Follow the instructions on the screen.

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Country Availability
Document ID : DS038333
Last Updated : 14 Jul 2014
Copyright © Lenovo 2013, all rights reserved
Was this page helpful to you?YesNo

Select Task
Drivers & Software  
Guides & Manuals  
Diagnose & Fix  
Warranty & Services  

Support Help Index
Driver Matrix
Drivers for LenovoEMC Storage
Newly Released Drivers (RSS)
Update your THINK product
ThinkVantage Tools
Solutions Center
Assisted Search
Popular Solutions
Microsoft Solutions
Self-Diagnose Tool
KnowledgeBase Featured Articles
Community KnowledgeBase
Community Forums
Lenovo EMC
Windows 8 Support