Danball' is perfectly allowed to be slightly perplexed with this, as it is quite strange. He is right, usually all driver updates are located in the driver updates list, and not the critical updates. It could be (like folk have said) that the Windows Update engine was programmed to make the official Nvidia drivers appear in the critical updates list if it detected some known Nvidia driver troublemakers, but I feel a more plausible explanation is that either, Danball' is yanking all our chains, or it is some glitch with Windows Update. I suspect it is the latter.

Either way, don't let Microsoft dictate to you which driver you should use Danball'. I don't know about you, but I prefer to make those kinds of decisions for myself.

Cheers