Enroll in Windows 10 Extended Security Updates for Free until October 13, 2026 (Free Microsoft Account Required) @ Microsoft
Windows 10 is meant to be EOL from October 2025. (No more updates, including security updates)
on my crappy old PC in the Windows 10 update area in settings, I saw text that mentioned "Windows 10 EOL October" and below that was a option to "Enroll for Extended security Updates".
All you have to do is create an Outlook email account (setup 2FA might also be a good idea, because it is signing into your entire PC), then sign in with that account on the thing that pops up when you click Enroll.
It's 100% free and guarantees security updates on your Windows 10 until October 13, 2026. even if you plan to do something about it in the next week, just in case you forget you could do this to give you 1 more year to think about options.
https://learn.microsoft.com/en-us/windows/whats-new/extended-security-updates