Those who have decided to be early adopters of Microsoft’s Surface tablet running Windows RT have probably purchased the slate about the moment it was available last month. However, according to information from Microsoft, you can rest assured that Redmond’s support will be long enough to keep you satisfied.
More than four years, that is until April 11, 2017, is what Microsoft is considering (and we definitely agree) to be a decent support period. According to its product lifecycle support page, the Surface running Windows RT will get mainstream support for more than four years, which should have you covered in terms of firmware updates.
As far as software is concerned, like Office pre-installed on the Surface, support should be available for the five-year period described for consumer software; however, Microsoft has been known to extend software support beyond this period.
Whether these updates will only refer to fixes and improvements for the same, main Windows version, or they will include future Windows operating system versions is yet unknown.