My Book 250GB Essential Edition

My external hard drive worked on my Mac for over a year.  I use it for back ups on Time Machine.  I always just left it plugged into the USB Port and Time Machine made continuous backups automatically.  Somehow it shuts itself down when not in use so  I have to remove the USB cable and plug it in every time I want to do a back up.  Anyone have that problem?  Let me know how to fix it.



Hi there, most WD drives have power saving enabled, which turns the drive off after a while… So yeah, it happens to most of here :slight_smile: