Microsoft Ends Windows 7 Professional And Windows 8.1 Sales To OEMs
As of October 31, 2016, both products reached their "end of sales" date for PCs that come with Windows preinstalled. What that means is that OEMs are not able to purchase additional Windows 7 or Windows 8.1 licenses to pre-load either legacy OS on a system. However, OEMs are allowed to use whatever licenses they might already own, new Windows 7 and Windows 8.1 PCs will not disappear overnight. For example, if you head over to Dell, you can still purchase an Inspiron 3250 desktop with Windows 7 Professional.
Though Microsoft wants to phase out sales of new systems running versions of Windows prior to Windows 10
Even so, Windows 7 remains the most popular version of Windows around. Nearly half of all Windows users (48.38 percent) are still using the legacy OS, versus around 1 and 10 users (10.57 percent) running Windows 8/8.1. Or if you prefer to pull your data from StatCounter, the story is the same just the numbers are a little different—it has Windows 7 sitting on top with a 35.45 percent share of the market, versus Windows 10 at 22.57 percent and Windows 8.1 at 7.56 percent.