If there is a CD-ROM changer attached to your computer, you may want to disable automatically running CD-ROMs (the automatic running of a compact disc [CD] or the automatic playing of an audio CD-ROM). If automatically running CD-ROMs is enabled with a CD-ROM changer, each time that you insert a new CD-ROM into one of the trays, Windows cycles through every tray in the changer.
When you insert any cd to your cd rom … the computer will autorun your cd …

And defaultly the cd will be opened with any default program just like video player program

Some times it’s very anoying … Because the cd is auto played ..

There is no default menu or option to enable or disable automatically running CD-ROM. To Disable automatically running CD-ROMs, you must edit the registry. Here is the way to disable autorun cd from registry :

• Click Start, click Run, then type regedit in the box, and then press ENTER.
• Find the following registry key:

  HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\CDRom

• To disable automatic running CD-ROMs, change Autorun value to 0 . To enable automatic running CD-ROMs, change Autorun value to 1
• Restart Your Computer PC

Tags: registry, windows