Check the BIOS first make sure the CD/DVD drive is enabled.
Kung enabled CD/DVD drive mo sa BIOS do the ff:
assuming Windows XP system mo...
1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. In the navigation pane, locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
4. In the right pane, click UpperFilters.
5. On the Edit menu, click Delete.
6. When you are prompted to confirm the deletion, click Yes.
7. In the right pane, click LowerFilters.
8. On the Edit menu, click Delete.
9. When you are prompted to confirm the deletion, click Yes.
10.Exit Registry Editor.
11. Restart the computer.
