Change UEFI boot order in dual boot

[KavitaWagh]

I bought new laptop with Windows 10 Home preinstalled. I also installed Ubuntu in dual mode. Now whenever I start the laptop it directly boots Windows instead of showing GRUB menu. So I opened BIOS Setting to change boot order. As shown in image below I could change the order but I could not save the changes because I need to press 'ESC' key to exit from this window which cancels the order change. If I see the Boot order again, my changes are vanished. How can I save the changes I made in 'OS Boot Manager' option here. 

(Edit: There is some problem with picture. I uploaded many times but the picture I have uploaded in not visible in my question)

[WAWood]

@KavitaWagh 

I'm sorry, but HP only warranties their PCs for usage with the OS that comes preinstalled.

IF you replace that with a Linux distro, or add a Linux distro, then you assume full responsibility for maintaining that -- including solving any problems with booting the other OS and/or installing the other OS.

Modern PCs with UEFI, instead of the older BIOS, are especially difficult to install because you have to go into the UEFI settings and make several changes before you can even boot from a USB stick -- and we are unable to assist in that work.

Your best bet for support now is to contact the support forum of the distro you are using.