Battle net crashes with text "No Disk in the drive"

For the last two weeks I can not launch battle-net as I get a pop up error indefinitely with the message “No Disk in the drive: Please insert a disk into drive D”. I have read that many people with windows 8 and 8,1 have a similar issue but none of the fixes work for me. I am also uploading my DXdiag file from my pc. Hope this gets solved quickly since it is very irritating to persist for two weeks.

DxDiag: (can not include full pastebin link so I am sending the after the / text
qXGzsgpr)