The Differential Backup is a type of backup. It is based on full backup.

Before having a Differential Backup, there comes full backup at first.

Differential backup means the files that need to be backup are modified, which is different from the original full backup, then the differential backup only backup the differences.

This feature is helpful that if you made some modification about the backup files.

You can set Differential Backup at the following step:

1, Load CVBackup

2,Create a new task

3, Select “Differential Backup” at the first step of New Task.