Check the Xbox services, games, and apps for any service outages.

许多键可以与 Fn 键或 F Lock 键配合使用来提供两组命令。 这包括顶行的标准功能键 (F1–F12)。 标准命令（如 F3）标在键的正面。 备用命令（例如“恢复”）标在键的顶部。

This update provides latest updates for Windows Security platform, which is comprised of the Windows Security app and its underlying service. To obtain the current version of Windows Security app, please run powershell command below:

Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.

There are several ways to calculate the difference between two times.

Choose either portrait (vertical) or landscape (horizontal) orientation for all or part of your document.

运算符用于指定要对公式中的元素执行的计算类型。 Excel 遵循一般数学规则进行计算，即括号、指数、乘法和除法以及加减法或首字母缩略词 PEMDAS (请原谅我亲爱的阿姨 Sally) 。 使用括号可以更改该计算顺序。 计算运算符分为四种不同类型：算术、比较、文本连接和引用。

Learn how to make items on the screen appear larger by using Magnifier in Windows.

Learn about modems and Internet connections, security, sharing files and printers, and how to set up a wireless network in your home.

Word 包含不可删除的结束段落，该段落有时会排到文档末尾的新空白页面中。 删除该页面的方法是将结束段落调整到前一页。 最肯定的方法是使结尾段落非常小， (1 磅) ：