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After installing Ubuntu 18.04, Windows 10 is not visible and I cannot start it.

sudo update-grub is doing nothing.

Found linux image: /boot/vmlinuz-4.15.0-29-generic 
Found initrd image: /boot/initrd.img-4.15.0-29-generic 
Found Windows Boot Manager on /dev/nvme0n1p1@/EFI/Microsoft/Boot/bootmgfw.efi 
Adding boot menu entry for EFI firmware configuration 
done

marked as duplicate by pomsky, Eric Carvalho, Charles Green, karel, Thomas Jan 20 at 9:01

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  • try sudo update-grub && sudo reboot – KB_ Jan 19 at 21:38
  • sudo update-grub doing nothing .................................................. Found linux image: /boot/vmlinuz-4.15.0-29-generic Found initrd image: /boot/initrd.img-4.15.0-29-generic Found Windows Boot Manager on /dev/nvme0n1p1@/EFI/Microsoft/Boot/bootmgfw.efi Adding boot menu entry for EFI firmware configuration done – Ash Jan 20 at 4:08