Dvd/cd Drive Is Not Detected By Windows 7 64-bit, Even Though Bios Is Showing Ok

Please run the following fix article that might help you to fix the issue:

http://bit.ly/b24y1n

In case issue still persists please follow the steps mentioned below that might help you:

1. Click Start , and then click All Programs.
2. Click Accessories, and then click Run.
3. Type regedit, and then click OK.  If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
4. In the navigation pane, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
5. In the right pane, click UpperFilters. Note You may also see an UpperFilters.bak registry entry. You do not have to remove that entry. Click UpperFilters only. If you do not see the UpperFilters registry entry, you still might have to remove the LowerFilters registry entry. To do this, go to step 8.
6. On the Edit menu, click Delete.
7. When you are prompted to confirm the deletion, click Yes.
8. In the right pane, click LowerFilters.Note If you do not see the LowerFilters registry entry, unfortunately this content cannot help you any further. Go to the"Next Steps" section for information about how you can find more solutions or more help on the Microsoft Web site.
9. On the Edit menu, click Delete.
10. When you are prompted to confirm the deletion, click Yes.
11. Exit Registry Editor.
12. Restart the computer. 

Please reply if you have any further questions.

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