A. This problem can be caused if you are loading the ATAPI real mode CD-ROM driver in the config.sys.

  1. Edit the config.sys file from the command prompt (cmd.exe)
    C:\> edit c:\config.sys
  2. Find the Device= line that contains the ATAPI Real Mode CD-ROM driver
  3. Edit the line so the /D: switch does not contain the word value "cdrom", for example
    Device=<driver> /d:cdrom
    to
    Device=<driver> /d:testa
  4. Save the file