BBC America: Satya Nadella has been at the helm at Microsoft since February 2014. Windows 10, which was released globally on Wednesday, is his most important milestone yet.
He hopes it will reverse the company's fortunes in the smartphone sector, where currently the company only has around 3% market share.
And, for once, some of what it can do looks genuinely useful.
Microsoft is laying off more employees, a new round after they cut thousands last year. It seems like many big tech companies are doing the same.
Amidst the AI frenzy of 2023, major players like Google, Microsoft, and Meta are in the spotlight, launching their own generative AI systems.