I made a fresh install of Fedora 25 in order to upgrade from Fedora 24. I was expecting as usual to find the dual boot entry for Windows 10 but it is not there: as a matter of facts there is no windows file in /boot/efi . I think that the problem is that I may have mistakenly I reformatted the /boot/efi partition (bad of me). I can access the windows partition and the uefi files that are in Windows/System32/Boot/ but I do not know how to restore them in grub so that the dual boot entry appears at the boot. Can you help me?