How to change boot sequence in dual boot?

#After installing Ubuntu first boot option is windows, how to change first boot as Windows?

#for Ubuntu 16.04 and above

  1. Copy grub file for prevention.
    • Sudo cp /etc/default/grub /etc/default/grub.bak
  2. Now edit grub file
    • Sudo gedit /etc/default/grub
  3. It will open your grub file.
    •  Sudo gedit /etc/default/grub


4. As in picture we are getting GRUB DEFAULT = 0, that’s why machine boot with first option from sequence in boot menu.

5. For example following menu we are getting in dual boot system

6. Change the GRUB_DEFAULT number as per your requirement.

7. For example in the following fig. your boot sequence number for windows is 2

8. Change boot sequence in grub file for making windows as first boot option.

  • Sudo gedit /etc/default/grub

9. Save the file

10. Reboot your machine.

11. It will start will Windows as first option.

12. Enjoy…