How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.

Learn how to recover files that have been lost, deleted, or accidentally changed.

如果在设置中打开用与首选语言不同的语言编写的页面，Microsoft Edge会自动提示你翻译它。 转到用外语编写的网页时，“翻译”图标 显示在地址栏中。 如果语言未包含在设置中的首选语言列表中，则该语言被视为外在语言。

How to open the Camera app in Windows. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened.. Open Camera

Learn how to find your Windows product key for activation or when to use a digital license instead.

Find out how to boot into safe mode in Windows from Settings, the sign-in screen, and a black or blank screen.

了解如何在电脑上安装 Office 2013 或 Office for Mac 2011。

Use Microsoft Edge settings to save user name and password information and save time when signing in to websites.

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。