I would just keep windows 10 and start saving for a new computer. I know it’s expensive but 8 years is a good run. Just please don’t anything sketch on it. As your computer stops getting updates, you will stop getting security patches. Mostly that means no piracy and no niche/not-well-known (often porn) websites. Again, id look into saving for a new computer. Also keep an eye out for SteamOS. It’s not available for computers yet but they say it’s on the way.