If you were in the market for a new PC with Windows 7, you might be out of luck. Microsoft is no longer selling OEM licenses for Windows 7, and no longer selling Windows 8 in the retail box. Windows 8.1 is the big client OS on the scene now. So, if you were looking to stay with an older OS, your time may be up.

There will be retail box sales of Windows 8.1 (Microsoft draws a hard line between Windows 8 and Windows 8.1) and businesses and consumers will still be able to buy Windows 7 Professional licences through ‘Downgrade Rights’, but it will come at additional cost and have limited availability.