BIOS Update for Windows 7, XP – Lenovo G475,G575

NameOperating SystemVersionReleasedDownload
BIOS Update
41CN21WW(V1.07)_Winflash.zip
5.42 MB
Windows XP,
Windows 7 32bit,
Windows 7 64bit
2103 Jun 2011 Download
BIOS Update
41CN21WW(V1.07).txt
5.42 MB
Windows XP,
Windows 7 32bit,
Windows 7 64bit
2103 Jun 2011 Download

Important information

Lenovo strongly suggests rebooting the system before applying the BIOS update.

Fixes and enhancements

Latest Version BIOS fixed all merged issues from previous.

Change history

41CN21WW (V1.07)

BIOS V1.07 for fixing System hang under WinXP when setting "LID closed is do nothing".

41CN19WW (V1.05)

System shuts down automatically (fail rate issue) for stress warm boot test due to EC being unable to obtain CPU temperature under certain conditions. This solution needs the EC BIOS to be updated.

Installation instructions

Take as example,

1. Restart computer.

2. Locate the file that has been downloaded.

3. Double click the. For Windows 7, you may run it as administrator by left-clicking on the icon and selecting "Run as administrator".

4. Click Install.

5. Click Flash BIOS.

6. Press Enter to start flashing. During the process, you are advised not to turn off the computer.

7. When the update finishes, the computer will automatically reboot for the changes to take effect.

8. Enter to BIOS menu, load default setting-> save and exit.

9. Please reboot the system again.

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