Recently, I've been updating my BIOS (on windows, with the HP assistant) so I did the update, but since now, when I start my computer, there no grub or dual-boot screen that show up. I have NO white error message on black screen. The only thing that happened is my computer booting on windows 10, like there's no dual boot at all, but that's not the case. I still have all my Linux Manjaro partitions with all my data on it. So what can I do in order to restore the grub menu ? I haven't the USB boot device that I used when I installed Linux, so I'm dowloading a new iso file of manjaro XFCE (the one I used).
Thank you in advance for your help. If you need more details/information, just tell me