Err no 5 input / output error

[carmar]

Please see:

Zorin Lite 15.3 installer error

jp42, have you performed a memtest? You can do so from the grub menu. Please check that UEFI is set to AHCI and not set to RAID. Some get this error when using the balenaetcher to USB option. I always prefer to burn to a DVD disk to install. Set the speed low when burning to a disk. Fast burn or USB install can both throw errors with the medium or the input output. Finally, ensure that your bootloader partition is on the same disk as your installation.

and

How to solve err no 5 while installing Zorin Os Education(15.3)?

From a quick check on Google, error no 5 is possible an error copying files to the hard drive or a faulty CD or USB drive. Can you try on a different machine, try replacing the disk or using different USB stick to install?