Normally, the F2 key upon restarting should direct the boot flow to the Visual Bios, given that the key press has been done at the right time (before OS loading). However, this may be not work when Fast Boot has been enabled on the NUC. Hence, this “power button reset” method can be used. Following are the steps:

  1. Ensure that the computer is at the off state by issuing the shutdown command from the operating system
  2. While the PC is off, press and hold the power button for 3 seconds. Release when the “power button menu” displays. Retry this step if this doesn’t occur on the first try
  3. Once such menu has been loaded, the keyboard drivers are loaded as well. Hence, an F2 key press will deliver you into the Intel Visual Bios
  4. Proceed with making changes
  5. Press F10 to save and exit when done