login Account

Adaptive Brightness Registry Patch for Windows 8.1 (32-bit, 64-bit) - ThinkPad 8, ThinkPad 10, Yoga, X1 Carbon (Machine types: 20A7, 20A8)

Operating System
Download now
Adaptive Brightness Registry Patch

305.9 MB
Windows 8.1 (32-bit)
Windows 8.1 (64-bit)
README for Adaptive Brightness Registry Patch

4.6 KB
Windows 8.1 (32-bit)
Windows 8.1 (64-bit)

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.