If your computer won’t boot from a CD, there are a few possible causes:

The computer’s BIOS may not be configured to boot from CD.

The CD may not be bootable.

The CD may be damaged.

The computer’s CD drive may be defective.

The CD may not be inserted correctly.

The CD may be dirty or scratched.

The computer may not have enough memory to boot from CD.

The computer’s operating system may not be installed on the hard drive.

The hard drive may be defective.

If your computer won’t boot from a CD, try these solutions:

Check the BIOS …