BIOS Update Utility for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), XP – Lenovo B490s, M490s

NameOperating SystemVersionReleasedDownload
BIOS Update Utility
hauj20ww.exe
9.84 MB
Windows XP,
Windows 7 32bit,
Windows 7 64bit,
Windows 8 32bit,
Windows 8 64bit
1.0407 Oct 2013 Download
README for BIOS Update Utility
hauj20us.txt
9.48 KB
Windows XP,
Windows 7 32bit,
Windows 7 64bit,
Windows 8 32bit,
Windows 8 64bit
1.0407 Oct 2013 Download

This package updates the UEFI BIOS (including system program and Embedded Controller program) stored in the Lenovo computer to fix problems, add new functions, or expand functions as noted below.

This program is language independent and can be used with any language system.


Supported ThinkPad system


  • Lenovo B490s, M490s

Supported Operating Systems


  • Windows 8 (32-bit, 64-bit)
  • Microsoft Windows7 (32-bit, 64-bit)
  • Windows XP