Samantha Rose Hunt29 April 2009, 10:30 AM
The Conficker virus has prompted a rethink in Redmond, and Auto Play in Windows will be largely disabled in Windows 7 as a result.
Windows 7 will no longer "auto play" or "autorun" programs that are listed in an AutoRun.inf file on a disk, unless on an optical disc such as a CD, DVD or Blu-Ray disc. When a non-optical storage device such as a USB memory key is plugged in to a PC, Windows will sit there mute and wait for the user to do something.

Conficker and many other worms are capable of abusing AutoRun.inf files to trick users into clicking an option capable of installing malicious software onto their computer.
Microsoft has left the door open for CDs, DVDs and Blu-Ray because they are much less likely to be subject to the injection of the worm, as they are either burned with special burning software or manufactured at a factory. Of course, worms could start to target popular disc burning packages like Ahead Nero, but at least the disablement of auto play for other types of disk is a step in the right direction.
Microsoft accepts that this will affect ordinary computer users insofar as they will have to physically browse to a disk and start the program they want to load -- but that is perhaps not a bad thing. At least computer users will be forced to learn the basics of accessing the contents of a disk and identifying the correct program to start, rather than relying on a Microsoft wizard to do it for them.