I think I need your help.
One month ago I just installed debian into my computer and it was working nice but I just deleted Win10 to install it. And 2 days ago I decided to install Ubuntu into a partition of my disk. And installed it but after a hour I changed my mind, decided to delete it (yeah, I am totally an idiot) and then I format the Ubuntu partition in debian.
But after that I just decided to download manjaro (yeah, I was still idiot) and burn it into an usb drive. And I put it into computer and opened boot options menu with pressing f11 but there was just WIN10, UBUNTU AND DEBIAN!? My usb wasn't shown up there and Windows and Ubuntu was still there. I tried to open Windows and it just opened debian grub. When I get into the bios menu my usb wasn't there too but there was just debian disk and I am totally totally sure my usb is working. I tried it on a another PC and it just worked. So yeah, my BIOS broken and I need your help.
What should I do? Just waiting for your help...
Thanks for your attention