This may sound crazy but I never use the install option when booting in live mode where you get choice of try or install. From the live desktop I have always had issues using the 'Install Zorin' from the Desktop icon. My best method is to launch the Windows Style menu and enter Install Zorin in the search bar and then when it comes up, launch that. Did you check the SHA256 checksum after downloading the iso? You might also want to try Ventoy. Education is very problematical as it is over 5 Gb and you can't go greater than 4 Gb on a FAT32 USB stick. You could try this as an alternative: