Watch Microsoft Unveil Windows 8.1 Preview Live Here

Microsoft is kicking off its Build developer conference today at 9am. The company has already announced that it will unveil Windows 8.1 in a Preview version during today’s event, but beyond that, we actually don’t know all that much about Microsoft’s plans for today’s keynote.

It’s a fair guess that Julie Larson-Green, who is now in charge of Microsoft’s Windows Division, will be there, but in the past, Microsoft CEO Steve Ballmer has also regularly made appearances at Build (he does have a thing for developers, after all). We also expect to hear a bit more about the future of Windows RT and maybe see some new hardware, too.

The keynote is scheduled to start at 9am Pacific and we will embed the live video from Microsoft’s Channel 9 here once it becomes available.