StaticSync is a powerful utility which can synchronize your files between two locations. You can synchronize/backup all your files and StaticSync will trace all changes on your next synchronization. Those changes include modifications, deletions. You don't need to worry what file should be deleted or updated to your target storage and StaticSync will handle them all for you. You also can add filters to control the synchronization procedure. StaticSync uses parallel task manager, so the synchronization is effecient.