As of July 2015 Windows 7 has slightly more than 60.9% of the total for all operating systems. How much impact will Windows 10 have?
Windows 7 has a whopping lead of 60.9% of the total market share for all operating systems including Mac OS, with Windows 8 at 2.9% and 8.1 at 13.1%. Windows XP still has 12% and Vista only 1.6%.
Only a very few of the XP users who purchased a new PC late in 2006 or early 2007 may have hardware capable of running Windows 10. Vista users more than likely have the hardware that could run Windows 10 but with only 1.6% of the market they are not a factor and since Windows 10 is not a free upgrade for either XP or Vista these users most likely will not upgrade.
Clearly if users update to Windows 10 it has to come at the expense of Windows 7. New device sales may also play a part but only from some back to school sales. The traditional holiday sales in the fall of each year will not be a factor in market share percentages until the numbers are available in December of 2015 or January of 2016.
Since Microsoft plans to roll out the upgrade in “waves” I would expect that some of you may still be waiting many weeks after the July 29th release for the upgrade to take place.