PXE boot, also known as Network Boot, is supported by all BIOS firmware versions on Intel NUC products.
To enable the Network as a boot device:
Press F2 during boot to enter BIOS setup Go to the Boot Menu (this may also be under the Advanced Settings depending on BIOS version) Select Boot Priority (or Boot Configuration) and uncheck Boot Network Devices Last Go to Network Boot and enable UEFI PXE & iSCSI Select either Ethernet1 Boot or Ethernet2 Boot Pressing the F12 key during POST automatically forces booting from the LAN.