If you open the NUC, you will see a yellow jumper. It should be on pins 1-2. If you move it to pins 2-3 and then boot, you will boot into the BIOS maintenance mode. When you are done, move it back to pins 1-2.
I tried this, and the unit still boots directly into Windows. The very first time I got an initial screen with "NUC" in large letters in the center of the screen. This lasted for about one second and then Windows 7 started up. I did not get this "NUC" screen again, and I rebooted five or six times. After that I reopened the NUC and moved the jumper back the the original position. Then on reboot the screen remained blank. I finally reconnected the monitor to my desktop computer and accessed the NUC with Remote Desktop. It responded OK, although it took an abnormally long time to do so and the desktop was not normal for the first five or so seconds, then cleared.
Any other ideas? I'd really like to get into the BIOS setup.
Is your bios up to date? You can place the latest .bio file on a flash drive and plug it into a USB port. You then move the jumper to maintenance mode and reboot the machine. The bios should automatically update without user input.
Yes; the reason I wanted to enter the BIOS setup is that I just updated the BIOS using WYLPT10H.86A.0028.EB.
I have the same NUC (with an H at the end of my model #), using my Samsung TV, also Windows 7-64bit, and the same Logitech K400 keyboard. I had the same exact and frustrating problem over and over and over and over and over again. The keyboard clearly worked but I couldn't get the 'F' buttons to work. When I finally figured it out I yelled an exclamation. With that said, forgive me if this seems so simple and if you already did this:
Look on the bottom line of your keyboard. The first key is 'Ctrl.' The second key is 'FN.' You have to hold down the 'FN' key in order to activate any of the 'F' keys (you see how the blue color matches?). Hold down 'FN' and then hit the 'F' key you want while still holding down 'FN.' (It works the same way holding down 'Shift' and then typing a letter gives you a Capital letter or symbols on top half of keys).
If you wait for that Bios screen to pop up, you'd better be quick. It's easier to just hold down 'FN' and kept hitting 'F7' until it gets to the necessary screen.
Well, THAT made me feel stupid! I bought the wireless keyboard just for this purpose and not used it before on any other computer. But once pointed out, the required button sequence is clear enough. My bad.
Thanks a lot for helping me in this! I really appreciate it.