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Data restore is the process of copying files from a backup, typically a separate disk, to the original location or other appropriate file locations in order to facilitate proper database operations.
With data restore, all of the restored data must be from the backup version. A good example is the Windows operating system (OS) restore function, where all system data is restored or replaced by data from a specific backup date or, in this case, a restore point.
In some applications, like user databases for games and source code versioning, data restores to a previous and more stable version (or rollback) may occur. This is usually a last resort, when the current version becomes very buggy or unusable.