https://wccftech.com/windows-7-reaches-end-of-life-update-to-windows-10-at-9-95-now/

Microsoft promised 10 years of product support for Windows 7 when it was released in October 2009. Now Jan 14th has finally come: Microsoft support for Windows 7 has officially ended. According to data from Netmarketshare, millions of PCs are still running Windows 7, and the operating system still runs on a massive 26 percent of all PCs, which are vulnerable to viruses, and that they should upgrade to Windows 10 to fix all of these issues.

Your Windows 7 computer will keep working, but Microsoft won't provide security updates or fixes, or technical support for any issues -- leaving your computer at greater risk from viruses and malware that may circulate to take advantage of any flaws that are later discovered.