I was trying to install Zorin OS 16 core on my Ubuntu Device of ACER and I have a disk with low capacity. So I wanted to Install it without USB Disk. Can you please tell me how can I do it. My boot configuration is of uefi.
You can install Zorin OS using a DVD rather than USB if you have a DVD / CD reader for your computer.
The procedure is essentially the same as if using USB. Burn the .iso as a bootable medium using a tool like Burnaware.
Boot the DVD, using the boot manager at startup if needed. Then Try or Install Zorin.