输入 Office 产品密钥的位置 - Microsoft 支持
我的产品密钥不起作用. 如果 Office 产品密钥不起作用，或已停止工作，应与卖家联系，申请退款。 如果产品密钥是独立于软件购买的，则很可能是被盗的产品密钥，或者是以欺骗方式获得随后阻止使用的产品密钥。
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 for home, Office.com
Use @mentions to get someone's attention in Microsoft Teams
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.
Applies To:
Microsoft Teams
了解 Microsoft Teams 中的新频道体验 - Microsoft 支持
了解可以使用 Microsoft Teams 中的新频道体验执行哪些操作。 查看在 Teams 中的频道中处理帖子和对话的所有方法。
Applies To:
Microsoft Teams
Mark a message as high or low importance - Microsoft Support
When you want people to know your message needs urgent attention, set the message as high importance. If the message is just an FYI, or if you’re sending mail to colleagues about a non-work related topic, you can set the message as low importance.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013, Office 365 Small Business, Microsoft 365 admin
How to verify an email address in your Microsoft account
Get the steps for how to verify an email address in your Microsoft account.
Applies To:
Microsoft account dashboard
Microsoft Bing help - Microsoft Support
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
Join a meeting in Microsoft Teams - Microsoft Support
Learn how to join a Microsoft Teams meeting by link, calendar, channel, chat, or by calling in.
Applies To:
Microsoft Teams
Add, format, or delete captions in Word - Microsoft Support
Manage captions for pictures, tables, equations, and other objects in your documents.
Applies To:
Word for Microsoft 365, Outlook for Microsoft 365, Word 2021, Outlook 2021, Word 2019, Outlook 2019, Word 2016, Outlook 2016
了解 Windows 11：个性化你的体验 - Microsoft 支持
了解如何个性化 Windows 11 体验，从选择桌面背景到为你最喜爱的内容创建 Microsoft Edge 集锦。 观看视频并继续阅读，了解相关提示，掌控 Windows。
How do I create macros? - Microsoft Support
This article shows you how to create macros that can be used to help with tasks you repeat often.