Adaptive Brightness Registry Patch for Win 8.1 (32/64bit) – ThinkPad 8, ThinkPad 10, Twist S230u, Yoga, X1 Carbon (Machine types: 20A7, 20A8)

NameOperating SystemVersionReleasedDownload
Adaptive Brightness Registry Patch
osfw38ww.exe
305.9 MB
Windows 8.1 64-bit,
Windows 8.1 32-bit
1.220 May 2014 Download
README for Adaptive Brightness Registry Patch
osfw38ww.txt
4.6 KB
Windows 8.1 64-bit,
Windows 8.1 32-bit
1.220 May 2014 Download

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


  • ThinkPad 8
  • ThinkPad 10
  • ThinkPad S1 Yoga
  • ThinkPad Twist
  • ThinkPad Yoga

Supported Operating Systems


  • Windows 8.1 32-bit, 64-bit