Error: "Windows- drive not ready"?

Problem :

when i close computer, or restart... i gett this message. Windows-Drive no ready
"the drive is not redy for use; its door may be open, please check drive A: and make sure that a disk inserted and that the drive dore is closed"


Answer :

go to NOD32 control center, click AMON,
Setup, Media and un tick the Diskette drive AND/OR the Shut Down tickboxes.