Disable autorun feature

I ran a vulnerability scan against one of my workstations. It showed that I needed to disable the execution of the Autorun.inf files.
The scanner was looking in the following location: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\IniFileMapping\Autorun.inf

My question is:
If there is no registry entry for Autorun.inf is this really a vulnerability or a false positive?

Any help would be appreciated. I looked in Microsofts KBs and they have you change settings in a totally different location to disable the autorun feature.