PS: save yourself time and effort, none of the previous post fixes the Win 10 missing drive issue.
A Windows 10 Upgrade from a CD will give you full functionality of your drives , be it 1 or 2 that...

in my previous post,Excuse the flaws in my grammar , I was in a hurry to post, here's a few corrections : Where it originates , nothing Was wrong with my system , (or unplug your internet) .
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Hello,
Read carefully,
I have 2 different models of LG Blu-Ray writers installed on my system, one will not show up in windows 10.

The problem with the missing drives is the Windows 10...