I plan on using the 2 new “My Book” 4 TB External Hard Drives for System Images using Macrium Reflect Free and other Backups (Pictures, My Documents, & other items on my Data D Hard Drive). When I converted the use of the 2 “My Book Essential” to my current Dell Precision Tower 5810, I formatted them both which removed the WD Software from the Drives and that WD Software was not on my Tower 5810.ġ of the Drives is used for System Images using recimg and the other drive is used for System Images using File History – so I just did not see any need for the WD Software. The WD Software was installed for both of those drives. I previously used the 2 “My Book Essential” Drives on an older XP Desktop for System Images using the Norton Ghost Ver 10.0 I just acquired 2 of the more current 4 TB “My Book” External Hard Drives. Those are the older version of the more current “My Book” External Hard Drives. I have 2 of the older 2 TB WD “My Book Essential” External Hard Drives.