Microsoft extends free upgrade offer from Windows 10 S to Pro September 5, 2017 by admin Tweet In an announcement about new variants of the Surface Laptop today, Microsoft revealed that it will be extending the free upgrade offer from Windows 10 S to Pro, until March 31, 2018. Read more… Neowin Related Posts:Microsoft will offer Windows 11 as a free upgrade to…Microsoft's new ad explains why you should upgrade…Microsoft announces $599 Surface Laptop Go 2Microsoft may not offer you Windows 11 if you use…Here is how you can upgrade to Windows 11 22H2 right now