I have a really strange problem.
I have a NUC6i5 with supported hardware from the Intel-List.
M.2 SSD with 128GB and with Windows 7 x64 UEFI-Boot (GPT).
Delivery BIOS: 0051
Updated to: 0061
Normal operations working fine.
But when I will boot from my USB-Stick / Removeable Harddisk with Acronis/other Recovery-SW that is not working.
My USB-Stick are not show correct in the Bootmenu.
All boots are a little bit different.
My 1 Stick: SanDisk Extreme
My 2 Stick: Transcend
My 3 Stick: WesternDigital Harddrive
I put one Stick in the NUC and boot -> F10
I see a new entry (UEFI SanDisk Extreme), but it is not working.
I change the Stick to Transcend in the NUC and boot -> F10
I see a new entry (UEFI SanDisk Extreme), but it is not working. And why it is the same name as my first stick?
I change the Stick to Western Digital (2 Partitions, one bootable) in the NUC and boot -> F10
I see 2 new entry (My WesternDigital),one one from 5 boots this is working... or not.
When I put my WesternDigital AND SanDisk into the NUC and boot -> F10.
I see 3 new entry, My 2 WesternDigital and SanDisk. When I press start from SanDisk, the NUC booted from WesternDigital (I see it with different Recovery SW on it)
When I use the UEFI-Shell, and search the correct fs0-fs4 for my needed stick, that boot with this efi-file it works.
When I make a complete BIOS reset (F9) or BIOS Recovery (with jumper) with a small called CISCO-Stick (128MB)...
Okay, now I think the complete NUC is clean... but when I put my WetsernDigital to boot from (F10) It shows in the BootMenu the entry SanDiskExtreme.
From where comes this name, from a fresh resettet NUC?
But what is resettet... After the jumper BIOS Recovey, the BIOS Settings are the same as before... strange.
How can I really reset all settings on the NUC? Where is the information stored? On the M.2 EFI?!?
And now the best: I have around 30 NUC6i5 and all have the same crazy behavior.
For me it is not 100% reproducible. On one boot Transcend have the name of the WD... On next from SanDisk and so on and so on.
At the Moment I use 3 different USB Stick Vendor, all have the same Acronis Software on it and I put all three in the NUC and hopefully the NUC boots from one of them...