Why won't CD's autorun when inserted in my CD-ROM drive?
Not all CDs will start automatically when inserted. They must contain a file called AUTORUN.INF. If the CD has autorun.inf and does not automatically run, perform the following steps to ensure the CD-ROM drive setting Auto Insert Notification is checked.
Enable Auto-Insert Notification
Click the Start button, point to Settings, and then click Control Panel.
The Control Panel window appears.
Double-click the System icon.
Click the Device Manager tab.
Click the plus (+) sign next to CDROM.
Double-click the CD-ROM drive model.
Click the Settings tab.
If the Auto Insert Notification checkbox is unchecked, click to check it.