It is an HP DVDWBD TS-LB23L. I have deleted the device in Device mgr but Win7 64bit reports it is unable reinstall the driver. Message "Windows cannot load the device driver for this hardware. The driver may be corrupted of missing (39)". I have tried HP support looking for drivers but no luck. I have other Win 7 64 systems available. I see a CDROM.sys file but am unsure if this will solve my problem or how to go about it.