https://techcrunch.com/2019/08/26/microsoft-enterprise-windows-7-security-updates/

In four months time, Windows 7 will reach end-of-life and will no longer receive security updates.

That’s going to be a problem for some enterprises which still run the decade-old operating system. Starting January 14, 2020, Windows 7 computers will stop receiving security patches, leaving enterprises vulnerable to malware.