Windows 10 will be released on Thursday 23 July. That's our guess, but we think it's a good one.
How can we be so sure? Well firstly, Microsoft has confirmed a summer 2015 launch for Windows 10 in the UK and 189 other countries. Then, in mid April, AMD's president and CEO Lisa Su inadvertently revealed there will be a "Windows 10 launch at the end of July" during an investor call.