Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

If the self-help answers don't resolve your issue, try a different search, or scroll to the bottom of the Help pane and, under Still need help?, select Yes.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Learn how to locate, install, and share files with custom fonts compatible with Microsoft Office applications.

Important: You won't lose files or data by resetting OneDrive on your computer.Resetting OneDrive only disconnects all your sync connections (including personal and work or school).

Under Microsoft Defender Firewall, switch the setting to On.If your device is connected to a network, network policy settings might prevent you from completing these steps. For more info, contact your administrator.

注意: 在Windows中获取驱动程序更新的最佳和最安全的方法始终是通过Windows 更新。如果在Windows 更新时遇到问题，则可能会看到 Update Windows 中的任何链接是否可帮助你先解决问题。

You can create a simple formula to add, subtract, multiply or divide values in your worksheet. Simple formulas always start with an equal sign (=), followed by constants that are numeric values and calculation operators such as plus (+), minus (-), asterisk (*), or forward slash (/) signs.The following is an example of a simple formula.

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Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.