Right tool. Right job.
Windows 10 IoT Core is a long way short of full Windows comparable to Windows Embedded rather than efforts like Windows 8.1 with Bing intended to run on very cheap hardware. So don't go getting excited about the chance to cook up a fleet of very cheap Raspberry Pi PC replacements.
But... I already did. I just put Debian on them. Works like a charm. Runs a bunch of kiosk machines in the cafe.