Setting Ubuntu as first Preference in BIOS

Issue:

In my laptop, Windows has an issue with rebooting.

After clicking reboot, it immediately runs into blank screen.

 

However, rebooting works perfectly fine within Ubuntu. 

Thus, I wanted to set Ubuntu as First preference instead of Windows.  

 

Fix: 

# went to boot manager and changed order of OS
anu@laptop:~$ sudo efibootmgr
[sudo] password for anu:
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0004,0001,0003,9999
Boot0004* Windows Boot Manager.........
Boot0001* Ubuntu........
Boot0003* Solid State Disk........
Boot9999* USB Drive (UEFI)............

anu@laptop:~ sudo efibootmgr 0001,0004,0003,9999

 

Attempts:

1. Turning off Fast Startup

2. Setting Windows as default option in Ubuntu GRUB

3. Giving Windows first preference in Startup

But it did not work. 

Thus, I have postponed this issue until I have time to work on it again. 

And I set Ubuntu as the first preference in BIOS, so it will automatically prefer Ubuntu.

What I did:

# Went to grub sudo nano /etc/default/grub # Set GRUB_DEFAULT = 0 sudo update-grub sudo reboot Update: I realized that the same issue pops up if I boot using Windows even once.  It seems that the boot order is overwritten by windows.. so I have to fix it each time I log in to Windows.. I will look into this Issue and update this post if there are any permanent fixes..