The following reg-file will disable autorun on optical drives and leave auto-insert-notification unaltered :
CODE
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer]
"NoDriveTypeAutoRun"=dword:000000B5
However, if you have disabled auto-insert-notification, then you'll need to re-enable it :
CODE
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom]
"Autorun"=dword:00000001
Complete reg-file with both reg-tweaks follows here, but if you haven't yourself disabled auto-insert-notification, then only the first reg-file is needed, as auto-insert-notification is enabled by default :
CODE
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer]
"NoDriveTypeAutoRun"=dword:000000B5
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdrom]
"Autorun"=dword:00000001