Do I need to leave my computer on for automatic backups to occur?
Yes. Your computer must be on and connected to the Internet for a backup to start. Disk Hero backups will start automatically. Note if you are offline (in an airplane or cannot connect) when you connect, Disk Hero has a list of files that you have modified since your last online connection and will automatically send the files to the backup servers. So you do not need to do any function or remember to do anything.