I'm typing this on a ~6 year old bog standard HP pavilion g6 (i5, 6Gb) which originally came with W7 and was updated to W10 a month after it came out. It just works. I accept all the updates and it still just works. I did bypass W8 because it was such a pile of wombat ****e, but W10 works fine.
Trying to avoid the updates is a "bad idea"[tm] because most of them are there to address security vulnerabilities which are either newly emergent or newly identified. Your call.
PDR