Disable Autorun/Autoplay is a great free application to do just that disable Autorun/Autoplay from opening any portable media, such as a USB pen, CD etc.
I personally think that autorun should be disabled as a default for one of the very reasons in the quote below in that it can be an easy route for malware to infect many PCs.
“There are many situations where AutoRun may need to be temporarily or persistently disabled. For example:
- AutoRun might interfere with the operation of a running application and need to be disabled for the duration.
- Some malware maybe achieve this by copying a malicious executable in the drive and modifying the Autorun.inf file so that Windows opens the malicious file silently as soon as the drive is mounted.”
Do note that you will have to run the application in Vista and Windows 7 as an Administrator to do this right click the application and choose “Run as Administrator” then once you have changed the settings you will need to reboot.