Cd-Rom Block registry through

                                           Cd-Rom Block registry through

You can disable the CD-ROM autorun by changing this setting, this will stop applications from auto launching when you insert a CD-ROM disc into your drive.

OPEN- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom

Change to value of 'Autorun', or create a new DWORD value if it doesn't exist: (0=disable, 1=enable)
Restart Your Computer.