Test your camera with the Camera app. Select Start , then choose Camera from your apps. If you're asked to allow access to the Camera, select Yes.If the camera works in the Camera app, the problem might be with the app you're trying to use.

另一个选项：按单击顺序播放. 从 PowerPoint 2016 开始，还有一个视频播放选项可用： 按单击顺序播放。设置该选项后，单击幻灯片上的任意位置转到下一步 (或按空格键、向右键或其他前进到下一步) 时，视频将播放。

1. Sign in with your Microsoft account. You will be prompted to Sign in with Microsoft account. If you have an existing Microsoft account on your mobile device then you will be asked to confirm your account, then click Continue.. If you don't have an existing Microsoft account on your mobile device then you will be asked to sign into your account or create a new one, then click Continue.

To resize the image, select the image to see drag handles appear around the image. Move the drag handles to resize the image as necessary. Select the Picture Format tab on the ribbon, then use the options on it to format your image. For example, you can apply a style or a border to the image.

本页可帮助你了解如何使用 Microsoft 日语输入法，包括输入法功能和键盘快捷方式。

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.

On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.

选择“ 审阅 ”选项卡，然后选择“取消保护工作表”。如果“取消保护工作表”按钮不可用，请先关闭 “共享工作簿”功能 。. 如果不希望在将来保护工作表时隐藏公式，请右键单击单元格，然后选择“设置单元格格式”。在“ 保护 ”选项卡上，清除“ 隐藏 ”复选框。

Windows 允许添加多个用户帐户以使用同一设备，使每个用户都有自己的设置、文档和应用程序。 例如，家长可以拥有自己的具有管理权限的帐户来管理设置和安装软件，而孩子可以拥有启用了家长控制的标准帐户来监视和限制其使用情况。

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.