Zorin OS 16 Core cannot install boot EFI

[Aravisian]

Aside from rEFInd you are exploring here:

Zorin os 16 core don't boot with USB drive

Try this, it's work for me when I tried to boot the live CD.

Can you try:

Zorin OS 16 Core install Failed to open EFI boot - invalid parameter

Can you boot into Zorin but hold the Left Shfit key starting at boot to bring up the Recovery Menu. From the recovery menu, arrow key down to "Enable Networking." Once that is done, bump back up to the Recovery menu and arrow key down to "Drop to Prompt". Hit enter, then sudo add-apt-repository -y ppa:yannubuntu/boot-repair sudo apt install -y boot-repair boot-repair Once the process is completed, test by rebooting.