I've tried a USB stick in every port, I've tried going into bios but there is no option to boot to USB. I've tried the power button 3 second trick, but that doesn't take me to a power button menu, it just boots to "no bootable device detected"
Any help please?
Are you trying to install a Legacy version of Windows? BE NUC comes set to boot UEFI and Modern Standby and Secure Boot by default. If you are trying to boot into a Legacy installer for Windows 10 then you will need to disable each of these first.
Make sure you do this before Windows has been installed or this may corrupt you OS.
Hope this helps.