How to Prevent a CD Boot

Boot Sequence

1). Turn off the computer. Turn the computer back on. Look at the screen and press the key that enters the "Setup" or "BIOS" menu. This key is commonly one of the "F" keys, such as "F1" or "F10," or "Delete."
2). Press the right arrow key to move over to the "Boot" tab or similarly labeled section. Press the down arrow until "CD Drive" or "DVD/CD Drive" is highlighted. Press the "plus" or "minus" keys on the keyboard to change the order of the CD drive to the last position. Make sure it is below the hard disk drive, commonly abbreviated "HDD."
3). Press the "F10" key to save your changes to the boot sequence and exit the BIOS. Select "Yes" on the screen and hit the "Enter" key if prompted to confirm that you want to exit the BIOS. For this scenario, if you prefer to leave various CDs in the drive, having "CD" as the first instance in the boot sequence can prevent the operating system from starting. To avoid this problem move the CD drive down in the sequence so the hard drive precedes it.

1). Click "Start." Type "Autoplay" in the search box at the bottom of the "Start" menu. Press "Enter."
2). Click the drop-down menu under each section labeled with the word "CD" or related to CDs. Select "Take No Action" from the menu to prevent those specific kinds of CDs and related activities from starting when you insert a disc into the computer.
3). Click the "Save" button to confirm the changes.