Reset bios to default settings:
- press F2 during boot, to enter bios settings.
- Press F9 confirmed by "Y" to set bios default settings
- press F10 followed by "Y" to save the settings and exit.
Could be that some upgrade was not complete. Follow the mentioned steps which would help:
- Left click on the "Start" button (in the lower left side of the monitor)
- Left click on "Command Prompt (Admin)
- Write the following in the Command Prompt window: sfc/scannow
- Press "Enter" on keyboard
- Wait till the system file checker process finishes and reboot NUC
If the above will not help you should recover your bios: BIOS Recovery Update Instructions for Intel® NUC . If you will choose the Power Button Menu option, release the Power Button immediately when the Power Led changes color form blue to amber. NUC will reboot into Power Button Menu. With the USB inserted into slot press F4 and the recovery will begin. The RY0367.bio bios file download from here: Download BIOS Update [RYBDWi35.86A]
Thanks for the suggestions.
This morning had the same issues, but took four power ons and power offs before the boot device could be found.
Anyway, I have now
1. Run the scf utility => no problems found.
2. Recovered the BIOS to the latest version. This gave me a Windows 10 BSOD on booting, but after the report was sent to Microsoft the NUC rebooted itself and all was OK.
3. Reran scf => no problem.
4. Run the Transcend SSD check utility. => no problem.
5. Installed a new batch of updates just arrived from Microsoft.
Turned off the NUC for twenty minutes and it booted fine.
Next step is to leave it off overnight and see what happens tomorrow.
I have always unplugged my computers and other electrical stuff overnight or if I go away for a day or more. I thought that is what most people do? Maybe not in the age of recharging devices overnght.
Leaving it turned on 24/7 is just putting a bandaid over the problem. The NUC is still under warranty, so if it is a hardware problem I can get it fixed.
Modern electrical devices do not need the power pulled unless you will be gone for a number of days. They draw so little power when off it is not an issue of cost. Sounds like some settings are getting lost when you pull power. Check the event log in the BIOS to see if you have any error messages listed. Changing the CMOS battery does not effect the settings in the BIOS other than the Time/Date. Could be you are getting a static surge when you pull power? Is the Power Adaptor plugged into a grounded socket? Try leaving it plugged in but powered off overnight and see if you get the same errors when you power it on again.
Thanks for replying.
- No error messages in BIOS log
- So the CMOS battery is only for the clock? Where are the other BIOS settings saved?
- I can unplug and plug in the unit with no issues provided it is reconnected to the power inside of at least 30 minutes.
- Leaving the unit plugged in all night gave no issue in booting.
Thanks for the suggestion, but I don't think it will prove anything useful. Depending on where I am with this, I will try it tomorrow. Problem is I only get one shot per day, as turning the unit off and on, even with a 30 minute delay, all works fine. I wish it was simply bricked.
I bought the unit and installed an SSD to get it to boot from scrath in fifteen seconds or so. It has been doing this reliably for almost exactly two years since I made the purchase.
Now something has gone wrong.