None.
I got a similar problem with a Dell. All of a sudden, the devices wouldn't show up anywhere in Windows. I tried to install the drivers (which were crazy hard to find for a 5 year old Dell), and it tells me I don't have the hardware installed. One fresh install of Windows later, and everything works fine again. Maybe a virus, maybe not, one mystery I'm going to leave unsolved.
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[09:16 am]
NimoStar -- ever wanted to play melee in installation tileset? Now you can https://staredit.net/topic/18929/[06:02 pm]
Zoan -- of course it isn't full understanding. You could ask "is the mechanism by which this counterexample blows up the ONLY mechanism possible for an initial configuration to blow up?"[05:47 pm]
Zoan -- HeinermannHeinermann shouted: it also didn't solve that problem but hey as long as the investors are pleased
Constructing a counterexample is answering the question: "Is Navier Stokes well posed?" in the negative[05:43 pm]
Heinermann -- it also didn't solve that problem but hey as long as the investors are pleased[05:39 pm]
NudeRaider -- I have no idea tbh. All I know no human was ever able to solve it, but there's at least a few that beat portal 
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