So what can we expect from Windows 8? Some interesting functionality.
That includes USB 3.0, and Bluetooth 3.0 support, video recognition and 'instant on' booting – which will obviously be seen as a response to Google's Chrome OS.
One of Chrome OS' big selling points is the speed of boot-up, and Microsoft is keen to bring the functionality to Windows.
"Windows 8 PC's turn on fast, nearly instantly in some cases, and are ready to work without any long or unexpected delays," said the document
"When customers want to check e-mail, sports scores, or play media they love to reach for their PCs because they can get to what they want quickly."
Another key addition will be a feature that apes Kinect – the next generation motion sensor video technology that is being brought to the Xbox 360 in the near future.
"Windows 8 could detect my presence and log me automatically," adds the document.
This latter nugget of information is intriguing – with person recognition one of the well-appreciated functions of Kinect.
Microsoft has long talked up the fact that Kinect tech could be brought to Windows – and there will now be hope that it will be arriving as soon as the next generation of the operating system.
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Patrick Goss is the ex-Editor in Chief of TechRadar. Patrick was a passionate and experienced journalist, and he has been lucky enough to work on some of the finest online properties on the planet, building audiences everywhere and establishing himself at the forefront of digital content. After a long stint as the boss at TechRadar, Patrick has now moved on to a role with Apple, where he is the Managing Editor for the App Store in the UK.