What is: Multifactor Authentication - Microsoft Support
How does multifactor authentication work? Let's say you're going to sign into your Microsoft account or work or school account, and you enter your username and password.If that's all you need then anybody who knows your username and password can sign in as you from anywhere in the world!
Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2
了解 Windows 上的 Game Bar | Xbox Support
打开 Xbox Game Bar，各种游戏活动尽在掌控中。 从小组件菜单中选择一项功能，它将作为小组件弹出。 其中很多叠加项可以移动、调整大小或固定到你的屏幕。
Language Accessory Pack for Microsoft 365 - Microsoft Support
Learn how to download, install, and configure Language Accessory Packs for Microsoft 365 for additional display, help, and proofing tools.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin
激活 Office - Microsoft 支持
解决激活错误. 如果 Microsoft 365 无法激活，其最后会变为未授权，且 Microsoft 365 的所有编辑功能都会被禁用。 Microsoft 可能由于多种原因变为未授权。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
使用 Windows 激活疑难解答 - Microsoft 支持
激活有助于验证你的 Windows 副本是否为正版，且未在超过 Microsoft 软件许可条款所允许数量的设备上使用。 如果无法激活激活Windows 11，激活疑难解答可以提供帮助。
Link your social network accounts to Xbox | Xbox Support
If you selected the Show icon on my profile check box but the icon still isn’t displaying, sign out of the device where you have the issue and then sign back in. On a PC, you may also be required to restart the app: Start Task Manager, choose the app that’s running (Game Bar or Xbox app), select End task, and then restart the app.
在 Microsoft Store 中更改所在国家或地区 - Microsoft 支持
我们建议仅当迁至新的国家或地区长期居住时才更改所在地。 这一点很重要，因为在一个区域中获取的项可能无法在另一个区域中工作。. 其中包括： Xbox Live Gold 和 Xbox Game Pass
Cross-network play on Windows devices and Xbox consoles
Some multiplayer games offer cross-network play (or cross play), which enables gamers on Windows 10/11 devices and Xbox consoles to play with gamers on PCs, Nintendo consoles, Playstation consoles, and more.
Add another account within Microsoft Teams (free)
See instructions on how to add an account within Microsoft Teams (free) on your desktop and mobile devices.
Applies To:
Microsoft Teams, Microsoft Teams personal