Just glad to have been involved.
Like you and the rest of us crash test dummies, I'm struggling too. Did my wife's windows 7 machine yesterday and had the famous shut down issue as well as a missing DVD, which was pretty strange.
One showed up and the other didn't (she has two, their identical and I bought and installed them only a few months back). Both were / are seen by the BIOS, but only one, in device manager and Disk Management.
I thought is was an intel chipset driver for her ASRock board, but no..... nothing that simple.
Turns out there is a registry hack for that, which I managed to find after deciding that I was not going to just let it go.
Resolution 5, bottom of this article
https://support.microsoft.com/en-gb/kb/314060
Worked like a charm.
Feel free to pass it along.