Windows 10 launch is a 'new era', says Microsoft boss
Windows 10 marks a "new era" for personal computing, Microsoft's chief executive has said. The software, launched globally on Wednesday, is the company's attempt to reverse its fortunes in the mobile industry.
Windows 10 will be offered as a free upgrade to most existing Windows users, as well as those buying new PCs. Analysts say the company is beginning to move away from relying on Windows as a key money-making product.
Speaking exclusively to BBC News, Satya Nadella said: "Windows 10 is a huge milestone for us as a company, and quite frankly the industry."