Fix none working DVD/CD drive in Vista and windows 7
When You upgrade a computer to Windows Vista or Windows 7 Beta, or install Windows Vista Service Pack, and after a restart, the computers CD/DVD drive no longer works as expected, or it says driver is not digitally signed, you will have to remove the affected filter drivers. To do this, follow these steps: Open Registry for editing (Regedit.exe). Locate, and then click the following registry sub key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318} Caution To make sure that you are in the appropriate registry sub key, make sure that the Default data value is DVD/CD-ROM and the Class data value is CDROM. In the [...]