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Lots of PCs are poised to fall off the Windows 10 update cliff one year from today
(arstechnica.com)
This is a most excellent place for technology news and articles.
The most important thing to get updates in the browser tbh. That's the source of nearly everything bad these days, and the main reason somebody would bother to update their PC.
I reckon they'll continue providing updates for those for as long as there's enough people using it. It's not like Google are going to willing turn round and go "whelp, no more adverts and spying for these millions of users!"
And enable a strict firewall