Windows 10 is available as a free update in 190 countries

As of July 29, 2015, Windows 10 is available as a free update for users of Windows 7 and Windows 8.1. With innovations such as Cortana, Microsoft Windows or Edge Hello, Windows 10 gives users an experience on all screens, simpler, personal and secure.
Windows 10 marks the beginning of a new era for Windows. It is the first operating system 100% co-developed by drawing on suggestions from more than 5 million testers. Windows 10 offers a personalized approach, more natural and resolutely turned towards mobility.Windows 10 will provide a unique experience of the smaller media with the Internet of Things, the greatest, be it smartphones, tablets, PCs, or HoloLens Hub area. The new Windows Store and the SDK for Windows are available today, paving the way for the creation of universal and innovative applications.

Windows 10 will be offered as free upgrade for PCs and tablet users with the latest official versions of Windows 7 and 8.1. The update to Windows 10 will simply, users who reserved their copy of Windows 10 will be notified starting today in waves to update their device.

Windows 10 is available now for deployment in professional positions. Enterprises with volume license may, in turn, migrate to Windows 10 and Windows 10 Education Company from 1 August.

Computers and tablets running Windows 10 will be available this summer with his partners.