Windows 10 will be available in the summer, Microsoft has announced, and it will be in 190 countries. In a blog post, Terry Myerson, Microsoft's Executive VP of Operating Systems, said that the OS would be in 190 countries and 111 languages in just a few months. It is no longer the case that the OS is launching in "late 2015".

It had been expected the operating system would come along in the late third or fourth quarter of this year. Microsoft first unveiled the new operating system in September 2014.

Windows 10 has a lot of new features and will be free for Windows 7 and Windows 8 users.