“Windows 10 represents the first step of a whole new generation of Windows, unlocking new experiences to give customers new ways to work, play and connect,” said Terry Myerson, executive vice president of the Operating Systems group at Microsoft. “This will be our most comprehensive operating system and the best release Microsoft has ever done for our business customers, and we look forward to working together with our broader Windows community to bring Windows 10 to life in the months ahead.”

While it's no surprise -- the return of the Start menu was announced during this year's Build conference in April -- it's still welcome news to many. The lack of a Start menu on Windows 8 and 8.1 was one of several features that caused many business Relevant Products/Services users, in particular, to avoid the current OS. Windows 10 will bring back an extended Start menu with one-click access to most commonly used functions, and that can be personalized with other apps and sites.

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Multiple desktops. A feature that has been present on OS X (Spaces) and Linux, multiple virtual desktops helps you organise your computer better. You can have a desktop space allocated where you have your personal files, apps open, while another desktop has all your work-related apps running.

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To complement this feature, Microsoft has added a Task view button to let you quickly switch between tasks and desktop spaces.

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Apps will be coming along for the ride too, though Microsoft hasn't explained how that's going to work. We do know that you'll be able to buy one app from the Windows Store and expect it to run on all your devices. Developers will presumably need to make universal apps that will adjust their look and feel, depending on your devices size and capabilities.

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Microsoft expects to release the OS sometime in 2015, after the company's Build developer conference in April. If you're feeling adventurous, you can sign up for the Windows Insider Program on October 1 to get your hands on the early (and likely buggy) preview build. The cost for the retail version has yet to be determined.