A:Answer Hi, Please be informed that the WD Easystore Portable drive is a plug and play device that comes equipped with WD Backup software. Moreover, WD Backup is an application which automatically stores a copy of your files, photos, and documents with on premise backups to a WD drive as primary storage. It can also restore previous backups to your computer. WD Backup does an incremental backup. Every time you disconnect and reconnect a backup target or source device, the WD Backup software rescans the backup source device for new or changed files and resumes automatic backup protection according to the schedule.To know more about the WD Backup software refer the below link- https://support-en.wd.com/app/answers/detail/a_id/12279 Need Help? Please see our "'Contact Us" page for information.
