Contrary to headlines you may have read today, Microsoft isn't dropping support for Windows 7 today. The operating system is still supported and will continue to receive security updates for at least another five years.Today is the last day of Windows 7's mainstream support period, with the operating system now entering extended support..icrosoft will no longer release new features for the operating system, but there's nothing new there: even during its mainstream support period, such updates were few and far between. No-cost phone support also comes to an end, but this too is essentially irrelevant to most Windows users.