This notion of universal Windows apps is a very powerful concept because we're now aggregating the 300-plus-million-socket run rate of Windows into one opportunity for our developers.

The opportunity ahead for Microsoft is vast, but to seize it, we must focus clearly, move faster and continue to transform. A big part of my job is to accelerate our ability to bring innovative products to our customers more quickly.

One of the key things in the tech business in particular is that you need to be able to push boundaries.

This is a critical time for the industry and for Microsoft. Make no mistake, we are headed for greater places — as technology evolves and we evolve with and ahead of it. Our job is to ensure that Microsoft thrives in a mobile and cloud-first world.

This is a software-powered world.

If you are going to have a risk-taking culture, you can't really look at every failure as a failure, you've got to be able to look at the failure as a learning opportunity.

A lot of people are joking about the Windows 10 error message that says 'Something Happened'. Well, that's not on me. My original idea was to not have any errors at all, and for the operating system to be called Windows RT ME One.