Using shadow copies
Any time your organization uses shared folders, you should consider creating shadow copies of these shared folders as well. Shadow copies are point-in-time backups of data files that users can access directly in shared folders. These point-in-time backups can save you and the other administrators in your organization a lot of work, especially if you routinely have to retrieve lost, overwritten, or corrupted data files from backups. The usual procedure for retrieving shadow copies is to use the Previous Versions or Shadow Copy client. Windows Server 2012 R2 includes a feature enhancement that enables you to revert an entire (nonsystem) volume to a previous shadow copy state.