Can I ask do any of you who see this error message also have Linux as a dual boot on your PC/laptop?

I'm getting the same error on my laptop AND my PC, the only connection I can make is that it's a dual boot system and linux sets (or does not set) the hardware UTC or something - if i let liunx set the utc time then linux and windows time keeps jumping 1 hour ahead and messing up; a different problem but I'm sure they are related, I'm sure this update checks the bios time.

Try removing battery from bios/reset bios, then set the time and then boot DIRECTLY into windows ONLY.