Speak to Cortana and ask for the weather forecast, set personal reminders, send an email, find specific files, search the web, etc. Summon Cortana by speaking clearly and slowly into the microphone. Start by saying the command, “Hey Cortana!” 

To manage and personalize Cortana, go to the Cortana app, press “Settings” and follow the prompts. Manage settings and what Cortana should know about you. Tap or click the Cortana app then click the Settings icon in the upper left corner to display its menu.