https://www.theguardian.com/technology/askjack/2019/sep/05/how-can-i-force-my-windows-10-laptop-to-update

Windows Update tells Frank that Windows 10 is up to date, but he still needs to install a new version

Why does my HP Pavilion laptop tell me that Windows 10 is up to date, but at the same time tells me I’m running a version that’s nearing the end of support, and recommends that I update to the most recent version? Frank