I have no idea when this happened, because I rarely use it.
But as of the past few days, my computer has slowed down a bit during start up when loading the desktop, so I was going to reinstalled Windows. I put the disc in, and it didn't run. So I went into My Computer to run it manually, and I realized that it's not there.
What do I do?
I did a virus scan, and my computer turned up clean.
It's a custom-PC, so I have no idea what to do.
Edit: It shows up in Device Manager (HP DVD Writer 1260t) but says under properties, "Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged."