Remove Windows entry in GRUB menu [closed]

Open terminal (Alt+Ctrl+T) and follow the below procedure :

• Paste the following command in terminal sudo gedit /etc/default/grub. It will open a file named /boot/grub/grub.cfg file.

• Add GRUB_DISABLE_OS_PROBER=true at the bottom of this file.

  It will prevent Windows being added to your grub menu.

• Now to write the change, run sudo update-grub

• You can then run cat /boot/grub/grub.cfg to check that your Windows entry has disappeared.

• Restart your device to check the same.

Note : If above one doesn't go well you can also visit the link Removing Windows entry from grub.

Happy Ubuntu :)