Surface will now be available in the UK, Austria, Belgium, France, Germany, Ireland, Italy, Netherlands, Qatar, Spain, Sweden and the United Arab Emirates.
Surface, which debuted in the US in 2007, has been bought by companies such as AT&T, which configured it to display information about a mobile device when a customer placed it on Surface's screen. Surface has also been used in healthcare and financial applications as well as in hotels.
Surface doesn't have a mouse or a keyboard, and people manipulate applications and items such as photos by tapping and dragging. Photos can be expanded using one's fingertips. Surface uses cameras to identity objects and sense hand gestures.
Microsoft said it now counts about 120 partners in 11 countries that are developing applications for Surface's interface.
Among those partners are Accenture and IT consultancy Avanade, which both created a wealth-management application that helps people with retail banking, estate planning and investments.