Looks like an updated firmware from Crucial is causing complete failures in their RealSSD C300 drives. If you have one of these, you might want to read through these articles and the posts in the Crucial forums.
Thanks for the info Kerry56
I almost got this SSD ( 256GB for my Notebook )
too many process for update firmware :a
and don’t like this
[B]WARNING[/B]: This firmware update process will result in the loss of all data on the drive. The firmware update process is done
entirely at your own risk. Before initiating the update process be sure to backup or make copies of all important files. If the
firmware process is interrupted your solid-state drive may not function properly.