Grub screen does not show after ubuntu dual boot

[Kiranrega]

Hai, I installed,d ubuntu along with windows 10 after installing I did see a grub screen. I don't know the fault and I disabled secure boot and legacy boot tried both options once tried both off and once tried secure boot disabled. And I want to turn off the fast boot but in my laptop,p in power options, I didn't see the fast boot. Can someone pls tell me the fault pls..

[WAWood]

@Kiranrega 

I'm sorry, but HP does not provide support for Linux distros -- including boot and installation issues.

IF you replace the preloaded Windows OS 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.

Since you are using Ubuntu, go here: https://ubuntuforums.org/

Good Luck