How to get rid of Grub menu?

Question

linux

It so happened that when installing Linux Mint, I did not completely clean up all the partitions (I used to have Windows). I deleted only the main ones (where Windows was C and the second D) and made the classic 3 partitions for Linux there (swap, root, home). I just thought that suddenly something if I decide to restore (Windows), then it will be easier. But now, at startup, the Grub menu pops up with the following items:

• Linux Mint 18 Cinnamon 64-bit
  
• Additional options for Linux Mint 18 Cinnamon 64-bit
  
• Windows Boot Manager (on /dev/sda3)
  
• System setup
  

How can I get rid of her? Just to not change anything in the partition structure. Is it possible to do so? It's just that the menu doesn't show up.
P.S. At the same time, Linux, after selecting the appropriate item, is completely loaded and working. It just gets in the way of the menu. You can’t load Windu anyway, so there’s no point in it.

Answer 1

That's right, you need to edit the grub config.
Go to the terminal (Ctrl+Alt+t), run the command:
sudo nano /etc/default/grub
A text file with settings will open, find the parameter there:
GRUB_TIMEOUT
Change its value to 1, save and exit (Crtl+o, Ctrl+x )
Run the command in the terminal:
sudo update-grub

Answer 2

Edit timeout in /etc/default/grub