Download and install the driver for ... Windows Vista?

I received this curiously strange error message today, after Windows Vista on my desktop computer came back from a blue screen:


It seems that Windows Vista is asking me to download and install a new driver to run … Windows Vista???

That's the same error message format that you sometimes see when a graphic card or other hardware device malfunctions and Windows recommends that you download and install a new driver for that hardware. But it appears that in this case Windows has a problem running itself...