Add missing Windows entry into GRUB

Step1: Install GRUB updater

sudo apt install grub-updater

Step2: Modify grub configuration to be able to detect Windows

sudo joe /etc/default/grub

…and add the following line


Step3: Update the GRUB entries

sudo grub-updater

Step4: Restart

Example of the Windows GRUB entry:

insmod part_gpt
insmod fat
search –no-floppy –fs-uuid –set=root 08C8-81C2
chainloader /EFI/Microsoft/Boot/bootmgfw.efi

(uuid you can get for example from “ls”)