Hello everyone. I have searched and read just about every post I can find about problems booting from USB sticks, but I can't seem to solve the problem on my Nuc.
Specs: Nuc Box says NUC5i3RYK; Bios says "Desktop Board NUC5i3RYB"; Bios Version: RYBDWi35.86A.0369.2018.0305.1050 (latest); 8GB RAM; M.2 SSD. Machine boots just fine from the SSD and operates normally. But booting from a USB stick is a different matter.
In BIOS, both UEFI and Legacy boot are enabled; Under boot conf, USB and OPTICAL Boot devices are checked; secure boot is disabled.
When I plug in a USB Thumb Drive to boot from (Linux, Acronis Backup, Spinrite, etc), I get NO legacy boot options on the F10 screen. The drive will appear as a UEFI device: "UEFI : USB : UEFI : USB : USB DISK 2.0 PMAP : PART 0 : OS Bootloader : PART 0". If I select that, I get about a half second black screen, then I'm returned to the F10 boot options screen to try again. I have confirmed that all the thumb drives I have created will boot okay on another machine, so the drives appear to be okay. I can, however, boot from a Legacy USB CD-ROM drive without issue.
Also, when in BIOS, no boot drives show under the legacy screen, even when one is plugged into the USB port.
I have toggled just about every setting I can find in the bios that relates to booting or to USB. I have also tried the USB sticks in every USB port on the Nuc. I have also done an F9 Bios reset to defaults without any success. Can anyone steer me in a good direction on this? Thank you in advance...
