Thanks Gazumped.
No luck. I'm able to get to the help page but when I enter a search request it returns nothing. (I haven't forgotten my password but as EN have used this as an example search I have used it as a test here in the expectation that it would return a result).
https://help.evernote.com/hc/en-us/search?utf8=%E2%9C%93&query=forgot+my+password&commit=Search
I'm wondering if EN can not find a Help & Learning file and whether I should uninstall and reinstall the software, which I'm reluctant to do if everything else is working normally.