When, in July, was launched Windows 10, Microsoft pointed out that the upgrade would be available for free for a limited time, after which all whoyet they fail to migrate to the new operating system will have to pay for it. The date in Redmond falls in the precise fulfillment of the first year of its OS, ie 29 July 2016. From that date, therefore, upgrade your computer to Windows 10 will cost $ 119.Siamo still waiting to know what will be the conversion of the price for Europe. At current exchange rates, $ 119 correspond roughly to 104 € .Intanto, 300,000 devices in the world have alreadyinstalled Windows 10, and also the new browser, Edge, seems to have been successful: according to the Redmond, users have used it to navigate to 63 billion minutes in March, with growth in the last quarter of 50%. Cortana, meanwhile, responded to over 6 billion applications, and users have played on Windows 10 to over 9 billion total hours.Release Date: July 29, 2015