I got a new laptop and installed Ubuntu OS. I decided to change my mind and installed Debian instead, and overwrote my hard drive completely deleting anything that was on it before. I successfully installed the new OS, but now everytime my computer boots, it takes me straight to something called a grub menu even after changing the boot order in bios, so I have to go into the boot menu, and boot my new OS manually every time. In this boot menu, it still shows my old ubuntu for some reason, which takes me to that grub menu if I select it. How do I remove this ubuntu remnant so I can delete every trace of it and just boot straight into my new OS?
Boot options: OS boot Manager (UEFI) - ubuntu (DF4032) // how to remove this completly OS boot Manager (UEFI) - debian (DF4032) Boot From EFI File