As of Saturday, for example, Amazon.com had a plentiful supply of various versions of Windows 7 available, as did technology specialist Newegg.com. The former also listed copies of Windows Vista and even Windows XP for sale through partners.
Even after Microsoft pulls the plug on Windows 7, there will be ways to circumvent the shut-down. Windows 8.1 Pro, the more expensive of the two public editions, includes "downgrade" rights that allow PC owners to legally install an older OS. OEMs and system builders can also use downgrade rights to sell a Windows 8.1 Pro-licensed system, but factory-downgrade it to Windows 7 Professional before it ships.
And enterprises with volume license agreements will never be at risk of losing access to Windows 7, as they are granted downgrade rights as part of those agreements, and so will be able to purchase, say, Windows 8.1 or Windows 9 PCs in 2015 or 2016, then re-image the machines with Windows 7.
The end-of-sales dates for Windows 7 are not linked in any way to the support schedule for the 2009 operating system. Microsoft will provide free non-security bug fixes and vulnerability patches for Windows 7 until Jan. 13, 2015 -- called "mainstream support" -- and follow that with a five-year stretch of "extended support" during which it will ship free security updates until Jan. 14, 2020.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed. His email address is firstname.lastname@example.org.
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