I am working on a Windows 10 x64 reference-image using MDT. All of the sudden all of my test images has a red or purple restart screen when Windows reboot first time after initial installation. Same color briefly flashes after the reboot, but all reboot occurrences after that are back to the normal blue color. No filesystem errors found either nor any driver issues apparently.

Should I be worried about the wrong color when restarting after initial installation? It does seem to indicate something is wrong.