What do you get when you execute the following at the elevated command prompt:ĭISKPART>list disk lists all disk devices on your systemĭISKPART>select disk 0 please specify the drive that you think contains your partitionĭISKPART>list vol lists all volumes on your system (including but not limited to the selected drive)ĭISKPART>list part lists partitions on the selected disk drive This is done for the sake ofĬould that be your case? Once again, if it's CD/DVD media, check to see you have media inserted. Windows 8 automatically switches optical media devices (and could be it switches off others as well) that do not have media inserted. If it's CD/DVD drive, you have to have media inserted in order for the drive to be active.