LennertVA, which BIOS version do you have installed on your NUC?
We have the same NUC and we are not experiencing this behavior.
Would you please try this workaround?
- Install the generic USB driver: Boot into Safe mode with F8. https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=23214
- In Control Panel > Programs and Features, uninstall the Intel USB 3.0 eXtensible Host Controller Driver.
If you were able to resolve it, please let me know.
I should check - it's whatever version was listed as latest on the Intel download website roughly three weeks ago; the filename is "wy0030.bio" so I'm pretty sure it's 0.30. I downloaded and installed it right after receiving the NUC to make sure I got all fixes so far (there's been quite a few related to IR, power states and such, from what I read).
I don't run Windows on the NUC; it's OpenELEC. This issue is not related to the OS though, since it happens *way* before the bootloader gets touched. Without USB keyboard attached, the NUC never continues past the initial "Intel NUC" splash screen which displays immediately after powering on. Plug it in and it continues to bootloader, then to OS
Quick confirmation: the BIOS is WYLPT10H.86A.0030.2014.0919.1139.
I've reset the BIOS to default options and the problem disappeared. After some trial-and-error I've found that disabling "legacy boot" (force UEFI only) will cause the NUC to halt during boot splash as described above. Re-enabling the legacy boot (even though it is not used, really) is enough to fix it. So this is no longer an actual problem, just an odd side effect of disabling "legacy boot".