Thank you for contacting us. The steps you have followed are correct, this remote control is plug and play. I would like to know which driver version you have installed. Here the link of the driver you should use based in your Windows 7 and your NUC's model number: Intel® Download Center
Please keep on mind that Intel® has tested with selected hardware peripherals, here the link of the supported ones: Intel® NUC Boards and Kits — Tested Peripherals
Please let me know about the driver you tried.
The only way a VRC-1100 (if it's this one http://www.amazon.co.uk/Windows-Control-Infrared-Receiver-Ultimate/dp/B003ZV3J72/ref=cm_cr_pr_product_top?ie=UTF8 ) will work is to use the USB receiver that normally comes with it it ) It will not work with the built in CIR. To work with the built in CIR it has to be a RC6 remote like one I own http://kodi.wiki/view/AIM_RC6_Media_Center_Remote_Control
I have the 54250 NUC and I just checked in my BIOS and you can enable my CIR as "Generic remote" "RC6 remote" "Xbox remote" . I don't know whether
the nuc5i5ryh has the same options. Anyway I tried Generic option and the VRC-1100 wouldn't work but the RC6 did. Rebooted to the BIOS changed the CIR to the RC6 option and the RC6 worked as expected. The VCR-1100 did not.
Check your BIOS and have a look and see if the options for CIR are there. If they're present try the various options, somehow I doubt if the 1100 will work tho'
As it turns out, it was the remote. It worked with it's own receiver but not the internal one in the nuc. I had tried the latest driver (from the HP web site) and changing the remote type in the BIOS with no success. So I purchased an HP branded RC6 remote on eBay and it works fine. So problem solved, maybe Intel will look at the HP remote and add it to the tested peripheral list.