To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Signature Line in the Text group. In the Signature Setup dialog ...

Learn how to troubleshoot problems when playing Xbox games from the cloud on an iOS device.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

如果准备好以数字方式设置新主机，则可以在 iOS 或 Android 移动设备上使用 Xbox 应用移动版。

Errors CAA2000B, 4usqa, and 49dvs when trying to sign in to classic Outlook and Outlook for Mac

瞭解如何透過瀏覽器、Xbox 主機或 Windows 裝置變更您的 Xbox 玩家代號。

If this is the first time you're setting up Authenticator, you might receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). Allow the app to use the camera so that you can take a picture of a QR code in one step.

Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

Tìm hiểu lý do tại sao bạn được yêu cầu đồng ý của phụ huynh trước khi bạn có thể chơi các tựa trò chơi Sử thi.