Startup disk can not just start a pretty picture or a movie, but also malicious software (trojans and other viruses). To enhance the security of computer systems, it is better to disable the autorun CD.
In this directory you can find text Autorun. Double-click on Autorun text, the window will pop up the Edit DWORD Value and change the value ‘1 ‘to ‘0’. Thats all, you should have autorun disabled now.