Earlier, Microsoft had said that Microsoft Security Essentials (MSE) would stop supporting Windows 7 on January 14, 2020. But in its latest question-and-answer session, Microsoft said it would continue to protect users after Windows 7 stopped supporting it.
Previous FAQ on Windows 7 Extended Security Update
Will Microsoft Essentials (MSE) continue to protect my computer after istoppised support?
No, Windows 7 computers will not be protected by MSE after January 14, 2020. MSE is unique to Windows 7 and enjoys the same lifecycle.
But at a recent Microsoft AMA event on Windows 7 at the Microsoft Community Forum, Microsoft employee Mike Cure said MSE would still receive signature updates after January 14 next year.
That does make sense, because in any case, Microsoft will develop updates for Windows 7 users who pay for extended security updates, but the ultimate goal remains to push more users, especially enterprise users, to upgrade to supported operating systems.