

However, none of them had accepted answers. Other existing questions ask about this particular error code. While KB4471332 fails with 0x800f0922, EFI partition is over 500MB has had an answer submitted, it was never accepted, and I already ruled it out as a possible solution.

Due to the length, it is far too large to provide in the body of this question. If anyone is interested in the Windows Update Log for the unsuccessful attempt, you can find that here. I never actually checked on the status of the updates and assumed the updates had successfully been installed. I have been unable to install any update for about a month, distributed through Windows Update. So I ran into an interesting problem today that I had not seen before, and it took a while before I realized what was causing it.
