The first time you turn on your HoloLens, you'll be guided through calibrating your device, setting up, and signing in. You'll also learn the basics of how to work with HoloLens and interact with holograms.
Before you get started, make sure you have the following available:
A Wi-Fi connection. You'll need to connect your HoloLens to a Wi-Fi network to set it up. The first time you connect, you'll need an open or password-protected network that doesn't require navigating to a website or using certificates to connect. After setup, you can also use other types of networks and use your device offline.
A Microsoft account. You'll also need to sign in to HoloLens with a Microsoft account (or with your work account, if your organization owns the device). If you don't have a Microsoft account, go to account.microsoft.com and set one up for free.
A safe, well-lit space with no tripping hazards. Health and safety info.
The optional comfort accessories that came with your HoloLens, to help you get the most comfortable fit. More on fit and comfort.
Cortana is already on and ready to guide you the first time you use your HoloLens (though she won't be able to respond to your questions until after you set up your device). You can turn Cortana off at any time in Cortana's settings.