Updated grub 2 config when win10 is updating, cannot continue update now, how to fix it?

I have win10 and fedora 27 on two different hard disks, and I use grub 2 as bootloader. Today win10 autorestart to update, and my default boot system is fedora, so I enter fedora to change grub 2 boot order and grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg, then I cannot enter win10. Black screen and only a cursor at upside left corner if I choose to boot in windows boot manager.

Now win10 is still under a updating state, so I don't know how to fix it. Can anyone help me?