https://wccftech.com/back-to-nagware-for-windows-7-users-starting-january-15/

Microsoft has called it quits on Windows 7, with support officially ending on January 14. The Windows maker has offered extended support for enterprises at an additional cost and free support for some 2020 election machines. The Windows maker also continues to offer free upgrade to Windows 10, its newest desktop operating system. However, if you haven't made the upgrade to the latest OS by then, it's back to the nagware.

Now, admittedly, this wouldn't be as bad as it was back in 2015 and 2016 when the company introduced Windows 10 to the world and with it the term "nagware." Microsoft has officially said that it will send a full-screen notification starting January 15, 2020 to alert you of the risks of continuing with Windows 7.