5 Surface Go and Surface Go 2 use a third-party UEFI and do not support DFCI. DFCI is currently available for Surface Laptop SE, Surface Go 3, Surface Pro 8, Surface Laptop Studio, Surface Laptop 4, Surface Pro 7+, Surface Laptop Go, Surface Book 3, Surface Laptop 3 and Surface Pro X. Find out more about managing Surface UEFI settings.