Windows 10 Build 9926: A first look
The first desktop appearance of Cortana is one of build 9926’s biggest new features.
If you’ve used Cortana on a Windows phone you’ll find the desktop release very similar, with voice control of searches and support for setting alerts and reminders – as well as surfacing relevant information from your calendar and email.
Currently Cortana is only available in a handful of geographies, so to be sure it works, and to get the most features, ensure that your test PCs are set to US region with US English as the primary language.