Apparently, my comp was "eligible for Windows 10 Extended Security Updates for no additional charge"

[kane_magus]

Or, at least, that's what Windows Update said today after it had downloaded and installed whatever "final" updates that were available today (on this, the official final day, supposedly, of support for Windows 10). So... I signed up for that shit, and I have access to security updates for Windows 10 until October 13, 2026 now, presumably. *shrug*

So, I suppose I can faff around and not upgrade my 15 year old CPU and motherboard and RAM for another year or so now.