Download Lenovo IdeaPad U310/U410 BIOS Update 65CN99WW

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To start downloading Lenovo IdeaPad U310/U410 BIOS Update 65CN99WW, please choose one of the links from the list below.

  1. IdeaPad U310, IdeaPad U410 BIOS Update 65CN99WW: 65cn99ww.exe

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.

Print this file so that you can refer to it during the installation.

Installing the package in Windows

  1. Restart computer. Press Fn+F2 enter BIOS.
  2. Choose "Boot-> Boot Mode", set to UEFI. Save and exit.
  3. Locate the file 65cn99ww.exe that has been downloaded.
  4. Double click the 65cn99ww.exe. For Windows 8, you may run it as administrator by right-clicking on the icon and selecting "Run as administrator".
  5. Click YES.
  6. System will reboot and flash BIOS. 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. Press Fn+F2 to enter BIOS menu, load default setting-> save and exit.
  9. Please reboot the system again.

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If you have found mistakes during downloading, please email to We will endeavour to solve these as soon as possible. Other problems, please try to contact publisher's official support.

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