Installed the HP CD Writer driver from the HP site and is seen in a download folder. Device seen, with caution yellow, in the device manager. Message: The drivers for this device are not installed. (Code 28)

There is no driver selected for the device information set or element.

To find a driver for this device, click Update Driver.

Update attempt made, driver set to run in XP ... The device has been successfully run on this ASUS K42F 86 bit machine before. Guidance sought

Hello,

I would try uninstalling the driver and then power off the computer. Next power the computer on and see what the system installs for the device. But if you can provide more information such as:
What OS are you running on the computer?
Is this a tower or notebook?
What type of drive is the CD-ROM (IDE, SATA, USB, etc.)?
If it is IDE is it the only CD-ROM drive in the computer and is it on a cable by it's self?
Does the computer CMOS (BIOS Setup) see the drive and have you gone in and to setup and let the computer recognise that a new drive is in the system?

Hope this helps...