This is a full version of Windows 10; we recommend you back up your files before installing. Windows Media Center is not available in Windows 10. Apps and features may vary by market. Updates are automatically enabled during support period; additional requirements will apply over time. Some features such as touch may require a new device. To check for compatibility, support period, and other important installation information, visit your device manufacturer's website.
 App experiences may vary.
 Windows Hello requires specialized hardware, including fingerprint reader, illuminated IR sensor or other biometric sensors.
 Broadband Internet required for some features (ISP fees apply). Xbox Live features only available with supported games in Xbox Live-supported countries, see xbox.com/live/countries. Limited number of games available in 2015 that support cross-device play; additional games to follow. Stream to one device at a time; streaming with multiplayer from Xbox One requires home network connection and Xbox Live Gold membership (sold separately); Gold also required for multiplayer play on Xbox One. DirectX 12 only available with supported games and graphics chips. Game DVR only available with supported hardware. Xbox One, PC/Tablet and Phone versions of games all sold separately.
 Cortana available in select markets at launch, experience may vary by region and device.