Win7 How do I disable the optical drive?

The steps are as follows:

1, first find the "My Computer" icon, right key "management" into the Computer Management menu.

2, the appearance of the Computer Management found in the "Device Manager" as shown below, the right will list the current computer equipment, of which there are DVDCD drives.

3, choose to turn off the disabled CD-ROM device, as shown. Right-click Select Disabled.

4, then prompts you to confirm that the device is disabled, point is. Are you sure.

5. After setting up, look again inside the Device Manager DVD optical drive device, there is a black down arrow indicates that the device has been disabled.

6, again open "My Computer" inside the computer can not see the DVD to remove the program equipment.