[1] Touch capable tablet or PC required. Pen accessory may be sold separately.
[2] User must enable settings.
[3] Windows Hello requires specialized hardware including a Windows Hello capable device, fingerprint reader, illuminated IR sensor or other biometric sensors.
[4] Limited to compatible websites and apps.
[5] Cortana available in select markets; experience may vary by region and device.
[6] Cortana app required for Android and iOS devices (Requires Android version 4.1.2 or higher, or iPhone 4 with iOS 8.0 or higher).