That's good going. My FIL was very techy, but was all his life, but things started going a bit wrong as he started dying (not that we knew at the time).
Our old PC updated itself, as have a few others said on here. All our other computers, we selected the upgrade, but I know the old PC tried it on it's own. Didn't work though. Only just got 7 to work on it. It's really old bt was a gaming PC ones, but it stores all the old photos with backups, and is the main PC for emails, although we both use phone apps and web email as well to get to the same account.