Windows not recognizing CDRW but BIOS does

[klath]

One day, my Lite-on CD-RW drive disappeared from the drive list. So I rebooted to check BIOS and it still showed up as primary slave with correct model number and everything. Load into Windows, nothing, no drive, no new hardware detected, nothing...help?

 

[Know Nuttin]

Delete the keys "upperfilters" and "lowerfilters", they should be in a folder in HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\IDE. You'll see the name of your CDRW drive there.