Count VietNam, ATMs and Nuclear Subs In
VietNam's Cong An (Peoples Police), CGST (Traffic Cops) all run on XP, proudly standing next to low resolution 8-bit Epson dot-matrix printers.
Both some of the UK and US nuclear submarines also run on XP, as do older generations of ATMs.
But since most of these act simply as 'dumb' terminals, with the heavy lifting done by main frames, does it matter?