Most cloud storage providers don’t offer the choice to retrieve previous file versions . This suggests that once a file is deleted or when it is changed, it’s usually stuck in that method for good. Once cloud storage offers previous file versioning, it’s often as an add-on or limited for a month to retrieval window for files. This will make recovering previous file versions, or accidentally deleted files difficultly, impossible. Cloud backup has previous file versioning built in to make retrieval easy. Even though a file is deleted from the computer, or from the network of computers that file can still be found and recovered from backup