How come my computer tells me the external hard drive was not correctly disconnected?

by on November 30, 2012

Q: I’m using a Macbook Pro and to backup my important files I use a external hard drive thats 1TB. Recently whenI have been plugging my computer into the HD it gives me a notice that the last time the hard drive was not properly ejected and that the MAC is working to revive information. Then the X-Drive disappears and I’m not able to access it in anyway even though its still plugged in. this info is so important and it will kill me if I’ve lost it all forever!! Please let me know if I can do anything.