Added #GRUB_TIMEOUT_STYLE=hidden
when I went to update grub I got this message
1: /etx/default/grub: #: not found
I am a new user and need help. Tired of going to the BIOS to switch.
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Hi Dark1,
try the following. 
https://howtoubuntu.org/how-to-repair-restore-reinstall-grub-2-with-a-ubuntu-live-cd
Since Grub Customizer is now in the repos, IMHO this is the easiest way to modify your boot up.
sudo apt-get install grub-customizer
I have the following in my grub -
I've changed the timeout to 3 so my boot time is quicker. I'm hoping that this might be of some help. Good luck @Dark1.
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