Apparently Consumer Reports asking CEO Satya Nadella to extend free Windows 10 support worked! I have four (4) PCs running Win 10. Three (3) of them had "Enroll in Extended Security Updates..." on the Windows Update screen. Clicking "Enroll now" worked perfectly. The fourth PC didn't show that choice, but I found instructions on the web how to do it, and they also worked perfectly. This is the link to the instructions:
https://www.yourwindowsguide.com/2025/09/cant-enroll-in-windows-10-esu.html
