Nothing booting

[sydic_gear]

I have a 2016 HP Envy Tower that was working just yesterday, I wanted to switch from Windows 10 to Ubuntu 24.04 so I used a bootable drive. The hard drive is an HDD 1 TB. It finished and it said take out the flash drive and hit Enter so I did and I got and error that said (thirdimage). Now whenever I try to boot up from a hard drive or usb it doesn’t work. With a hard drive it say (second image) and with a usb it say (third image).

the hard drive works when I put it into another desktop pc so it’s not the hard drive

I tried turning off secure boot and still nothing. I also tried going through the boot manager but none of the hard drives or USB show up (third image). I don’t know what else to do PLEASE HELP!

 

 

[TheOldMan]

Installing Ubuntu has altered the Windows boot manager.  Typically Ubuntu uses Grub for a boot manager and it should have made a entry for Ubuntu to start.

The "Boot Device not found" means the OS did not find a proper boot manager.  If Windows is still on the original boot drive, it can be repaired.  If the Ubuntu installed the OS on the same drive as where Windows was installed, then you might need to start over.  You can make a Ubuntu "Live" and boot to that without making any changes to the drives and then use the Live version to look around and to repair the Grub boot loader.

Or just start over with the Ubuntu.

[sydic_gear]

Using another PC I already tried reinstalling Ubuntu on the hard drive and it did nothing, The hard drive works on the other PC and I don’t know how to repair boot manager if that is the problem

[TheOldMan]

First - are you attempting to dual boot Windows  and Ubuntu or make it a just Ubuntu OS?

[sydic_gear · Accepted solution]

Spoiler

Two things


first I am doing a single boot

Second I actually fixed it.

turns out I needs to clear my boot keys in bios, use the mbr partition scheme, and use custom keys instead of hp keys

[TheOldMan]

Glad it has worked out to the good.