Hi Alex,
What troubleshooting have you followed already?
I would suggest you to follow these steps from this article and check if it helps.
Your CD or DVD drive is not recognized by Windows or other programshttps://support.microsoft.com/kb/314060
**Important:**This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry
incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry,
click on the link below to follow steps to back up registry:****http://windows.microsoft.com/en-US/windows7/Back-up-the-registry
Let us know if it helps. If the issue persists, we will be happy to assist you further.