To get someone's attention in a channel conversation or a chat, @mention them. Just type @ before their name and then select them from the menu that appears.

Learn how to stream HDR video in Windows. Find out the display, PC, and graphics card requirements for streaming HDR video.

Learn how to record your steps to help troubleshoot a problem in Windows 10.

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.

学习如何在 Windows 中解决 USB-C 问题，修复 USB 设备、端口和适配器无法正常工作。

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

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Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

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Experimente essas soluções se não conseguir ou não tiver a certeza de como iniciar ou terminar sessão na sua conta de e-mail do Outlook.com, Hotmail, Live ou MSN.