My latest home project involves using a Intel NUC (D54250WY) as a HTPC (Home Theatre Personal Computer), or in short I will use at as a media client for either Plex or XBMC (haven't quite made up my mind yet). I put 16 GB of RAM in the device, and a 240 GB mSATA hard drive. The media files will be streamed from my HP MicroServer in which I added a 480 GB SSD for the OS (didn't have any smaller around) and 4 x 4 TB SATA disks, and created a storage pool in Windows Server 2012 R2.
Back to the Intel NUC: Of course I wanted to use the UEFI capabilities on the device so I upgraded to latest BIOS, enabled UEFI, and installed Windows 8.1 on the device.
I installed the device from a MDT 2013 offline media (USB 3.0), and I had added the drivers to the deployment share as well. The setup took about 5 – 6 minutes, but when logging in I noted a message in the right-hand corner: "SecureBoot isn't configured correctly."
Fixing the Secure Boot message
First, I was a bit puzzled because I did enable Secure Boot at the same time as I enabled UEFI in BIOS. Problem was I forgot to check the "Install Intel Platform Key" which was not enabled by default. As soon as both Secure Boot options were enabled, the message went away.
Note: The BIOS screen dump was taken with my trustworthy Epiphan DVI2USB 3.0, a great frame grabber.