Windows 8 Keeps Ejecting my CD-ROM Drive

This behavior can be caused by the incompatible third party filter drivers. Please follow the steps to remove filter drivers and reload the driver of the CD drive.

Delete filter driver
=====================

1. Click "Start", in the Start Search box type "regedit" and press Enter. 
2. Navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

3. Right click on "Class", click "Export"; please name the file as "RegBackup" (without quotation marks) and then save it to the C:\ drive as a backup.

Note: In case we need to undo the modification, we can double click this RegBackup.reg file to restore the registry key.

4. Highlight this key, on the right pane, check if the "Upperfilters" and "Lowerfilters" values are present. If so, please right click on the values and select "Delete" to remove them.

After deleting filter drivers, please reload the drivers.

Reinstall driver
=====================

1. Click "Start", in the Start Search box type "devmgmt.msc" and press "Enter".
2. Expand "DVD/CDROM Drives".
3. Right click the listed DVD/CD-ROM, and click "Uninstall". Please uninstall all devices.
4. Restart the computer.

The drivers will be loaded automatically.

Note: 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