Disable Autoplay Of Pendrive

HOW TO DISABLE AUTO PLAY OF YOUR PEN DRIVE TO AVOID VIRUS ACTIVATION?
just follow the simple steps
=>go to
=>run
=>type gpedit.ms
=>then click COMPUTER CONFIGRATION
=>open ADMINISTRATIVE TEMPLATE,
=>open SYSTEM,
=>now you will see a option named "TURN OFF AUTO PLAY" in the sixth position from bottom

=>right click this option,choose properties