I clicked on this because I sat in front of my Win7Pro laptop for an hour this morning, as it said 'installing Windows updates. 100% complete' and thought that it might be related.
But I see that update (KB4093118) installed on my machine last Friday, April 13, and I've had no reminders since. I have my updates set to 'warn me when they're available and I'll choose to download'
I do remember something like that (updates re-downloading) when they were trying to get us all across to Win10, but nothing since.
Good luck with that!