如果选择 " 使用 Internet 激活" 选项，激活向导将通过您的 Internet 连接自动与 Microsoft 授权服务器联系。如果您使用的是以前未使用过的有效产品密钥，则您的产品将立即激活。 如果选择 " 使用电话激活" 选项，请拨打 "激活向导" 中提供的电话号码，然后键入客户服务代理提供的确认号码。

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Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

了解如何使用 Android、iOS 或 Windows 设备在 Xbox 上玩云游戏。

不能将 Microsoft 或 Xbox 礼品卡用于在 Xbox One 上购买 Xbox 360 Marketplace 中的内容或 Xbox 360 内容。 购买 Microsoft 或 Xbox 礼品卡时，确保使用的货币与接收人的帐单帐户相关联的货币相匹配。

Use the OneDrive mobile app to backup your phone's camera roll to Microsoft OneDrive. Note that it does not sync photos - it's a one-time upload. This means that once OneDrive has your camera roll, you can delete photos and videos from your device, freeing up valuable space, and the copies in OneDrive won't be affected.

汇报默认屏幕和睡眠设置现在可帮助你更高效地使用能量并延长电池使用时间。 可以在 Windows 11 中找到效率设置 >系统 > 电源 & 电池。. 有关每个电源和电池设置如何提高设备性能的引导式演练，请单击按钮打开“获取帮助”应用：

Method. Used for. Authenticator app. Two-factor verification and password reset authentication. Text messages. Two-factor verification and password reset authentication.

Screen time reporting shows daily and weekly details about when and for how long your family member used their devices. Gain insight into the amount of time your family member spends on a particular social media app, game or web browser and decide whether you would like to enable screen time limits for any connected devices. To view screen time for a family member, tap Today, then Screen time ...

1. 使用Microsoft帐户登录. 系统将提示你使用 Microsoft 帐户登录 . 如果移动设备上已有Microsoft帐户，系统会要求确认帐户，然后单击“ 继续”。 如果你的移动设备上没有现有的Microsoft帐户，系统会要求你登录帐户或创建一个新帐户，然后单击“继续”。 2.