Just thought it worth mentioning for those using Wintousb, you can now create bootable usb flash drives with full Windows that will boot on UEFI PCs as from CU, Windows recognises multiple partitions on a flash drive.

Previously, wintousb flash drives were limited to legacy bios and some pcs eg surface pros do not even have legacy bios support. Even if it does, on most you have to set pc to boot in legacy bios mode.