1. Windows 10 launches
This year saw the usual cavalcade of big headlines in business tech. Here are 12 of the biggest stories of 2015.
Perhaps the biggest tech story in the business world in 2015 was the release of Windows 10. The latest upgrade to the world's most widespread operating system for desktops and laptops was generally well-received, but it also got some backlash at its summer launch due to privacy concerns.
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