DVD/CDROM not working

Did anything happen to the laptop before this started? Sounds like something has happened to it, which has maybe made a connection come loose. But, to fix this (if it is the issue) it would require you to dismantle the laptop, but this might not work as we don't have your computer, and some steps we offer may seem confusing.

I'd recommend, if the warranty hasn't expired, take it back to your manufacturer/shop you bought it from so they can repair it, or diagnose the problem.

Thanks, Dom.

As always, check the cables and reseat power and data just to be sure. If you've done that, however, and it's still not showing up in Windows, an easy way to test is to put a bootable CD or DVD into the drive, make sure it's listed as the first boot device in the BIOS, and see what happens. If the BIOS doesn't see it or doesn't boot from an otherwise known-good bootable disc, you can be pretty certain it's seen it's last and needs to be replaced.

Jortan, if you have restore points, I recommend that you restore your system to a time before you edited the registry. If you remember exaclty what you changed and what those values were, you can change them back. It is best not to mess with the registry unless you know exactly what you are doing. If you decide to edit the registry, back it up first.