BIOS Update for Windows 7 (32-bit, 64-bit), Windows 8 (32-bit, 64-bit), Windows 8.1 (32-bit, 64-bit) – Lenovo G405, G505



NameOperating SystemVersionReleasedDownload
BIOS Update
82cn24ww.exe
3.09MB
Windows 7 32bit,
Windows 7 64bit,
Windows 8 32bit,
Windows 8 64bit,
Windows 8.1 32-bit,
Windows 8.1 64-bit
2.0419 Nov 2013Download
README for BIOS Update
82cn24ww.txt
2.97KB
Windows 7 32bit,
Windows 7 64bit,
Windows 8 32bit,
Windows 8 64bit,
Windows 8.1 32-bit,
Windows 8.1 64-bit
2.0419 Nov 2013Download

Supported Systems


  • Lenovo G405, G505

Supported Operating Systems


  • Windows 7 (32-bit, 64-bit), Windows 8 (32-bit, 64-bit), Windows 8.1 (32-bit, 64-bit)

Important Information


  • BIOS, abbreviation of Basic Input/Output System, is integrated in ROM chip on main board, which contains the basic input/output program, system configuration information, system startup self-check and pre-setup programs. BIOS provides most basic low-level hardware operations; it is the connection between software and hardware, and interfacing window of hardware and operating system.

    Note: Make note of any settings you have changed in the BIOS Configuration Utility. These settings may have to be re-entered after updating the BIOS.

    Attention: Do not power off or restart your computer during the BIOS flashing process, which will cause serious damage and improper functioning of your computer.


Updated Information


  • Latest Version BIOS fixed all merged issues from previous.

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