![]() Incremental backups also back up only the changed data, but it only backs up the data that has changed since the last backup - be it a full or incremental backup. Differential backups are more flexible than full backups, but still unwieldy to do more than about once a day, especially as the next full backup approaches.But the amount of data being backed up grows with each differential backup task until the next full backup. Differential backups are quicker than full backups because so much less data is being backed up.On Monday you back up only the files that changed since Sunday, on Tuesday you back up only the files that changed since Sunday, and so on until the next full backup. A differential backup backs up only the files that changed since the last full backup.įor example, suppose you do a full backup on Sunday. What is a differential backup?Ī differential backup is one practical method for backing up single files or folders that change every day in backup strategies. ![]() This is the basis of sophisticated backup strategies. For that reason, it makes sense only to back up the data that has changed on a daily basis. Typically, only a small percentage of the information in a partition or disk changes on a daily, or even a weekly basis. This includes the applications themselves, the Operating System, and even most of the user data. ![]() Most of the information on a computer changes very slowly or not at all. ![]() But they differ significantly in how they do it, and how useful the result is. Full stepsīoth differential and incremental backups are "smart" backups that save time and disk space by only backing up changed files. Full stepsĬlick the "Select backup contents" button. ![]()
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