Download issues may occur due to unreliable network connections or a browser connection that may disrupt your download. If you see an error message about the network connection, just refresh and try again. This generally fixes the issue. If not, try clearing your cache.
If you’re trying to download on a school computer, it's important to note that some schools restrict downloading. Instead of downloading at school you may have to download at home. You could put the download on a USB drive, in your Google Drive or email it to yourself to get the access at school.
Purchases cannot be emailed as the files are too large.