I noticed my restore wasn't restoring backup points. So, I went to restore section and verified that indeed it was shut off. I noticed it was turned off for C:, but turned on for D:, but showed no restore points, and it was also turned on for I: drive which is my My Book external back up drive. I backup both C/D drives to this continuously. I decided to turn off the D: drive for restoring as I have everything backed up to My Book I: drive as I don't want that backed up to the C:. After doing that I noticed the D: disappeared from the view window of available drives for restore. I went to device manager and it shows no D:. I save all files to D:. C: has OS Windows 7, Office 2013, and other software that works better on an SSD. . I save all files to D:, then back them up to My Book. I have searched here and other places for solutions, but most have to do with new installs. Any ideas would be apprecaited