A differential backup is a type of backup that only occurs if the local files being backed up are different from the files on the last backup.

Backup, Diff, Software terms

  • How to back up your computer.
  • How to perform a system image backup in Windows.
  • How to back up and restore a Mac.
  • How to back up a smartphone or tablet.
  • See the MS-DOS backup command page for additional information about the MS-DOS backup command.