Get the most out of your subscription with expert advice and support from small business advisors. Business Assist for Microsoft 365 is designed for small businesses to give you and your employees around-the-clock access to small business advisors as you grow your business, from onboarding to everyday use.

本文介绍 Microsoft Excel 中 NPV 函数的公式语法和用法。. 说明. 使用贴现率和一系列未来支出（负值）和收益（正值）来计算一项投资的净现值。

扩展或加载项是自定义浏览器体验并为你提供更多控制权的简单工具。 下面介绍如何在 Microsoft Edge 中添加、关闭和删除扩展或加载项 。

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重要: 关闭Microsoft帐户时，你的电子邮件和联系人将从我们的服务器中删除，无法恢复。如果将Microsoft帐户用于 Xbox、Skype、OneDrive 或其他Microsoft服务，则你将无法再访问这些服务。 你还将无法访问任何保存的 BitLocker 恢复密钥。

Introducing Whiteboard. Whiteboard makes it easy to collaborate in the hybrid workplace or classroom. Brainstorm, plan, and share with others on a digital canvas, all in real time!

Turning on the Memory integrity setting would block these incompatible drivers from loading. Because blocking these drivers might cause unwanted or unexpected behaviors, the Memory integrity setting is turned off to allow these drivers to load.

First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...

查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。

Nếu bạn đang gặp sự cố với Windows 11 trên PC hoặc muốn một bản sao Windows 11 mới mà không có tệp hoặc ứng dụng cũ lộn xộn, bạn có thể cài đặt lại Windows 11 để thử khắc phục sự cố và đưa PC về trạng thái rõ ràng hơn.