Windows 7 Pro is still availabe.
Microsoft Corporation announced that it has officially discontinued the retail sales of some versions of Windows 7 and 8 to clear the path for the newer versions of the operating systems (OS).
Microsoft had stopped selling copies of the Home Basic, Home Premium and Ultimate versions of Windows 7 from Oct 31 through original equipment manufacturers (OEMs) and now discontinued sales of Windows 8 as well.
Therefore, the recent announcement leaves consumers with just one option of Windows 8.1 till it releases the next update, Windows 10 in late-2015. Windows 8.1 will now be offered as the default version on laptops and PCs for sale.
Windows 7 Professional can still be purchased through Microsoft's Downgrade Rights at an additional cost and with limited availability. OEMs can still sell PCs pre-loaded with Windows 8 and Windows 7 Professional over the next one year.