How to disable autoplay and autorun features in windows 7

Autoplay in pendrives,memorycards,Cd is one of the culprits to inject virus into our systems.This feature was actually intended to load flash bashed animations,navigation menus present in these devices.Virus coders started modifying Autorun.inf file to inject their pet virus into our systems.So i suggest you to turn this feature of .Microsoft disabled the autorun support for non optical drives that means if you insert a USBdrive autorun task will not be initiated.I suggest to disable this autorun feature to your optical drives to stay away from virus.Now join with me to know how to do that
Type autoplay in search programs and files  box .Now select start or stop using autoplay for all media and devices .

Now uncheck the box which says  use autoplay for all media and devices.

thats it folks enjoy