iFlash BIOS Update Instructions for Intel® NUC

Last Reviewed: 13-Sep-2017
Article ID: 000006640

The iFlash BIOS update utility allows you to update the BIOS from a bootable USB device. Information on how to create a bootable USB device is at the end of this document. See instructions, or print and use the PDF version.

Note: PDF files require Adobe Acrobat Reader*

  • All BIOS update files for Intel® NUC products are available on Download Center.
  • Downgrading the BIOS to an earlier version is not recommended and might not be supported. An earlier version might not support the latest processors, bug fixes, critical security updates, or board revisions currently manufactured.
  • Do not interrupt the BIOS update process. We recommend the process be done in an environment with a steady power supply (preferably with UPS).
  • Before updating the BIOS, manually record all BIOS settings that you changed (from default) so you can restore them after completing the BIOS update.
  • All images in this example are for illustration purposes only. You need to select the correct BIOS files for your Intel® NUC.


  1. Download the iFlash BIOS Update file. Example:
    iFlash BIOS Update download

  2. Double-click the *.ZIP to extract its files.

  3. Copy IFLASH2.EXE and the .BIO file to the bootable USB device.
    bootable USB device

  4. Configure the BIOS of the target computer to boot to the USB device:

    1. Press F2 during boot to enter BIOS Setup.
    2. Go to the Boot menu.
    3. Enable USB Boot.
    4. Press F10 to save and exit the BIOS Setup.
  5. Boot the target computer with the USB device connected.

  6. At the prompt, type IFLASH2 /PF XXX.BIO, where XXX.BIO is the file name of the .BIO file and press Enter.

  7. Follow all prompts.

Creating a Bootable USB Device
Refer to the following websites for tips on how to create bootable USB devices. Intel is unable to assist with the creation of bootable devices.

You can also search the Web for how to create a bootable USB flash drive.

Related topic
Other BIOS update methods
Troubleshooting BIOS issues

This article applies to: