When I shutdown it from Windows 10, it turns off but then starts automatically again after 2-3 seconds.
It is only possible to shut down by pulling out the power cable during that 2-3 second period or by holding power button longer than 10 seconds.
I have tried recovering BIOS, but that did not help (ver. 0051).
This happens every time I try to shut it down.
1. Enter BIOS - click on F2 when you see the Intel NUC logo.
2. Reset BIOS to default settings - click on F9 (confirm) and then click on F10 (confirm), to save default settings and exit to Windows.
3. Let the NUC fully reboot into Windows and then click Power > Shut down.
4. If you want customize bios settings, you can enter again to Bios setting to change the necessary settings.
This problem (restarting), happened to me in NUC FN in both versions: 0050 and 0051, but after recovering BIOS and resetting to default it was fixed. So, it is up to you to try download BIOS, but I don't know if it will help.
However, I'm sure that this is BIOS problem (rather than Windows) and it happen after BIOS update.
After you see the message that recovery was completed, hold the power button until NUC power OFF. Next, remove the Power Adapter Cable. Only now, reinstall the jumper between pins 1-2. Close the bottom cover, connect the Power Adapter, power ON the NUC and let it fully reboot into Windows.
Finally, restart the NUC, and enter BIOS to set the default settings.
Refer to page 33 in Technical Product Specification, for jumper location.
I tried performing recovery with jumper removed again. No luck.
In fact even when it says recovery is complete and tells me to power off, remove power cable and reinstall jumper it is impossible to just turn off, because it restarts 3 seconds after I press power button.
Anyway this doesn't seem to be fixable just by recovering flash, as I tried F7 and Jumper methods few times already.
Are you aware that after resetting BIOS to default settings, the Sleep Mode is set to Modern Standby (this is the default Sleep Mode). If you are working in the Modern Standby mode, can you put your NUC into sleep from the Start Menu?
My NUC FN when is working in Modern Standby mode, can't go into sleep from the Start Power Menu. That's the reason that after resetting BIOS to default, I take care to keep the Sleep Type in Legacy S3 Standby.
Apart from the above recommendations, try reinstalling the operating system and if it does not work we recommend that you contact live support for warranty options.
Please keep in mind that this thread will no longer be monitored by Intel. Thank you for your understanding.
Intel Customer Support Technician