Now the official availability date of Windows 10 final version is July 29 as it is indicated on all the Microsoft`s sites in every language around the world . The official Press Release is just below:
Hello World: Windows 10 Available on July 29.
Today, I’m excited to share the availability date for Windows 10. In fact, I thought I’d let Cortana, the world’s most personal digital assistant, share the news. You can ask Cortana for the answer, or if you don’t have a Windows phone or a PC running the Windows 10 Insider Preview handy – you can hear it for yourself here:
Through the feedback and testing of over four million Windows Insiders, we’ve made great progress on Windows 10 and we’re nearly ready to deliver this free upgrade to all of our Windows customers*.
It’s the same desktop you know and love, only better. It's quick start up and more security. It's Cortana, a new browser, and a one stop Windows Store. Windows 10 is coming July 29, 2015. Reserve your free upgrade today: windows.com/windows10upgrade