How to remove Windows from grub menu and boot straight to ubuntu?

I have removed Windows 7 using GParted, and want my computer to boot straight into Ubuntu, but I still get the dual boot screen, how can I fix this?

In the Ubuntu system, run this command in the Terminal:

sudo update-grub

That will rebuild the list of available operating systems, and Windows will no longer appear on the list.

There still may be a list, since you can choose between different kernel versions, or to test your system's RAM.

So if you find you still don't like the menu, you can make it appear for a shorter time.

• Decrease GRUB timeout

You can even make it appear for no time at all, by setting the timeout to 0. Then, if you find you do need to access it, hold down Shift while booting, and it will appear.

Boot into Ubuntu and then run the following in the terminal, it will update your grub and then you should only see Ubuntu

 sudo update-grub

If this works and you want to hide the grub screen and not have to select any kernels at boot run

gksudo gedit /etc/default/grub

edit the GRUB_HIDDEN_TIMEOUT_QUIET=false to read GRUB_HIDDEN_TIMEOUT_QUIET=true

I would also recommend changing GRUB_HIDDEN_TIMEOUT=0 to GRUB_HIDDEN_TIMEOUT=1 as it will make it easier to press Shift or Esc to show the grub menu if you need to select old kernels(Previous Version of Linux). This is completely optional, I find it a more reliable way to get to grub menu when needed. It will slow down the boot by that 1sec that the grub is waiting for a key press.

Note: if you change GRUB_HIDDEN_TIMEOUT_QUIET or GRUB_HIDDEN_TIMEOUT you will need to re-run

sudo update-grub

Open a terminal and run the command -

sudo update-grub

it will remove windows entry.

if you don't want to see grub menu (if it is still showing) open /etc/default/grub. to do this run this command -

sudo gedit /etc/default/grub

Find GRUB_HIDDEN_TIMEOUT and GRUB_HIDDEN_TIMEOUT_QUIET and change as follows-

GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true

after doing these run this command again -

sudo update-grub