Microsoft is setting its sights on a major milestone for Windows 10. The company said today during its Build conference in San Francisco that it's aiming to have 1 billion devices running the new OS by 2018.

"Within two to three years of Windows 10's release, there will be 1 billion devices running Windows 10," Microsoft VP Terry Myerson said during the keynote address, as reported by GameSpot sister site CNET.

Windows 10 launches this summer (the end of July, if AMD is right), and will be available as a free upgrade for existing Windows users for PC and mobile devices. The new operating system also has a renewed focus on gaming.

Also at Build today, Microsoft revealed the name of its Internet Explorer replacement for Windows 10 and announced a new partnership with Unity for HoloLens.

For lots more on everything announced at Build, be sure to read CNET's extended coverage. The event runs through Friday, so keep checking back for even more news from the show.