Do people still use Windows 7? Absolutely. And if they cling to it past January 14 of this coming year, they'll have to pay a fee to Microsoft to continue to receive security updates. Most people won't (and can't) do this, as Microsoft's paid security updates are geared only toward businesses, but a clever little hack allows normal people to take advantage of this service - for free. What you should do? You have to first install three prerequisite updates to your Windows 7 system: KB4490628, KB4474419, and KB4523206. Restart your system as needed.

Then download the BypassESU tool (password: heslo). Install it, and you should then be able to install this test Extended Security Update (KB4528069). The BypassESU tool should allow you to circumvent the check Microsoft puts in place for Extended Security Updates. Once this update installs successfully, you should even be able to uninstall the BypassESU tool, as you'll now be authenticated for future security updates. Of course, Microsoft might invalidate this little workaround and/or alter how it authenticates for Windows 7 Extended Security Updates. As the readme.txt file for the BypassESU tool notes:

However, you may consider this as prototype, based on tests with update KB4528069, things may change on February 2020.