Password or login name forgotten on my old iMac. How to fix?
I have a 2011 iMac 27' which runs Mac OS High Sierra which has been off for eight months. Now I cannot get in as it rejects my login name or password each time I try. How can this be fixed? All the answers I see seem to apply to Catalina or Mojave, rather than the older High Sierra.
iMac 27″, OS X 10.11