CD-ROM into the computer why prompted the need to format, as shown in Figure 1 and according to his prompts after the operation, or not, as shown in Figure 2

Please make sure that the CD is not damaged and can be read, you can try on other computers, if OK, it is the problem of the optical drive;

The first time you use the optical drive or a long time without the use of optical drive may appear above tips, it is recommended to clean the laser head, pull out the CD-ROM drive, gently wipe the surface of the laser head with cotton or a better tissue paper, and then blow the surface of the debris clean, and try to read the CD-ROM after the operation.

If the above steps are ineffective, please reinstall the driver for the optical drive, right-click on my computer to open Properties, select Hardware - Device Manager - check the model number of the optical drive, manually uninstall and install the driver. If you are not familiar with it, please install Driver Wizard first, and then let it upgrade the optical drive driver automatically.Good luck!