“The specific end of support day for Windows 7 will be January 14, 2020,” Microsoft says. "After that, technical assistance and software updates from Windows Update that help protect your PC will no longer be available for the product.
However, as Microsoft says on its support website, "for customers requiring more time to move to the latest product, the Extended Security Update (ESU) program is available for certain legacy products as a last resort option.
The ESU program provides security updates only for up to 3 years, after the End of Support date. Contact your account manager, partner or device manufacturer for more information."
The Extended Security Updates program is available for Windows 7 Professional, Windows 7 Enterprise, and Windows 7 Ultimate through volume licensing programs, and it does not include or provide customers with user-requested non-security updates, new features, or design change requests.