Backups & restore points · Data Backup basics
What's the difference between Data Backup and Data Transfers?
Short answer: Data Transfers makes two places match right now; Data Backup keeps a history of versions. If a file is deleted or damaged, a sync copies the damage, while a backup lets you restore the earlier version.
Data Transfers moves, copies or syncs files so two places match right now. Data Backup builds up a history you can go back through. That's the difference that matters when something goes wrong.
If you delete or damage a file, a sync faithfully copies the damage to the other side. A backup keeps the earlier versions, so you can restore the file as it was yesterday or last month.
Use Data Transfers to get files somewhere — onto a cloud account, between accounts, onto a drive. Use Data Backup to make sure you can always get them back. See Data Transfers questions.