FIX
This happens when an incorrect driver was installed for the DVD-ROM. There are two solutions you can try.
Method 1: In the Control Panel, double-click System. Click on Device Manager in the Hardware tab. Click the drive with the question mark next to it. Click Uninstall in the Action menu and click OK when prompted for confirmation. Click “Scan for hardware changes” on the Action menu. Your drive should get automatically detected. If this does not happen, try Method 2.
Method 2: Open the Registry editor and go to the following key:HKEY_LOCAL_MACHINE/System/CurrentControlSet/Control/Class/{4d36e965-e325-11ce-bfc1-08002be10318}Click Export on the File menu, type “back-upkey” in the file name dialog box, and click Save. This will help you revert to the original registry settings for this key, in case you make an error. Now delete the values Lower Filters and Upper Filters in the right-hand pane and restart your PC.
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