There are two different ways to get Windows 10 Mobile:
- Buy one of the select new devices running Windows 10 Mobile that are available now.
- If the upgrade is available for your existing Windows Phone 8.1 device, you can install it. To check for and install the upgrade, download the Upgrade Advisor app from the Store. Open the app, then select Enable Windows 10 upgrade.
The availability of Windows 10 Mobile as an upgrade for existing Windows Phone 8.1 devices will vary by device manufacturer, device model, country or region, mobile operator or service provider, hardware limitations, and other factors.
For a list of eligible phones and important info about the upgrade and Windows 10 Mobile, go to the Windows 10 Mobile specifications page.
Because of the size of the update, a Wi-Fi Internet connection is required for download and installation.