Referring to Windows Phone OS, which failed to make any worthwhile impression in the mobile operating system arena, he said, “We didn’t miss cell phones, but the way that we went about it didn’t allow us to get the leadership, So it’s clearly a mistake.”

Although he admits that the company had a flawed strategy, Bill Gates still believes that Microsoft’s current CEO Steve Ballmer performed well running the business. Talking about Ballmer, Gates said, “Well, [Steve Ballmer] and I are two of the most self-critical people — you can imagine. “And here were a lot of amazing things that Steve’s leadership got done with the company in the last year. Windows 8 is key to the future, the Surface computer. Bing, people are seeing as a better search product, Xbox. … But is — is it enough? No, he and I are not satisfied that in terms of, you know, breakthrough things, that we’re doing everything possible.”

Windows Phone, which was launched in October of 2010, has only managed to garner 3 per cent of the mobile OS market up until now. Watch the interview below: