On HP notebook dv9724ca, the CD / DVD drive looks OK on the bios, but does not appear in the Device Manager at all. Under "Computer", DVD RW Drive (D:) shows up with properties of being a DVD RW Drive under the general tab, but under the hardware tab, it shows up as being a hard drive (identical to the actual hardware C: drive). How do I change the hardware, or delete the drive and get it do a new plug and play self-discover?
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