Thanks!
I did a little digging and this is a pretty good article with several good links:
https://www.bleepingcomputer.com/news/microsoft/how-to-check-and-update-windows-systems-for-the-meltdown-and-spectre-cpu-flaws/
Trying to look in to this can give a non-tech person a headache, but I’m glad I could help.
—On my way now to check out your article and crossing my fingers they don’t come up with new information that dooms old 32 bit computers. (My desktop’s got to be over 10 years old).