About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

查找 Xbox 和适用于移动设备和 iPad 的游戏应用程序的 Microsoft 官方软件许可条款。

If you don't have the Microsoft Authenticator app for iOS, select Download now. Tip: You can scan a QR code or send a link to your mobile device to download the Authenticator app from the Authenticator app page. After you've downloaded Authenticator, select Next. Select the phone method to receive codes by text.

To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store. Get the app

了解成人可以如何管理家庭成员的游戏活动，并通过其 iOS 和 Android 手机设置内容限制。

Note: This article uses a Windows device for demonstration purposes, but you can also register devices running iOS, Android, or macOS. What happens when you register your device While you're registering your device on your organization's network, the following actions will happen: Windows registers your device on your organization's network.

从 2025 年 3 月 19 日开始，不再支持适用于移动设备的 Xbox Game Pass。 获取有关其他设备上的云游戏的详细信息。

Synchronization of contacts between your Outlook account and your Apple iPhone or iPod touch requires Apple iTunes. You can configure which items are synchronized during a one-time set up process.

To save Outlook contacts to your native address book: First go to Device Settings > Contacts and confirm that the 'Default Account' is set to 'iCloud'. If you do not see this setting that is OK, the setting should only be available if you have more than one account added to your device.

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