我在 Outlook 中无法发送或接收邮件 - Microsoft 支持
在 Outlook 状态栏上，如果看到 “已断开连接”、“ 脱机工作”或 “正在尝试连接...”，则Outlook 无法访问电子邮件服务器来发送邮件。. 若要解决此问题，请在功能区上选择“ 发送/接收”选项卡，然后在“首选项”组中，选择“脱机工作”，在脱机模式和联机模式之间切换。
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013, Office for business
Get an Office Add-in for Excel - Microsoft Support
Important: New name for apps for Office - Office Add-ins. We are currently updating our products, documentation, samples, and other resources to reflect the platform name change from "apps for Office and SharePoint" to "Office and SharePoint Add-ins". We made this change to better distinguish the extension platform from Office apps (applications).
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Install the latest updates for Windows - Microsoft Support
Windows 11 automatically downloads and installs updates to make sure your device is secure and up to date. This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected.
Office Help & Training
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I get a "stopped working" error when I start Office applications on my ...
If the Office app starts in Safe Mode, disable the application add-ins and COM add-ins one at a time: With the Office app still in Safe Mode, click File > Options > Add-Ins . Check the Manage list for Add-ins options, such as Word Add-ins or Excel Add-ins, and then click Go .
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Visio Professional 2013, Office for business
Gerenciar sua assinatura - Suporte da Microsoft
Explore os benefícios da assinatura, procure cursos de treinamento, saiba como proteger seu dispositivo e muito mais.
Applies To:
Outlook.com
Add, turn off, or remove extensions in Microsoft Edge
Note: If you don't see Extensions to the right of your browser address bar, select Settings and more > Extensions.
在 Windows 中管理用户帐户 - Microsoft 支持
Windows 允许添加多个用户帐户以使用同一设备，使每个用户都有自己的设置、文档和应用程序。 例如，家长可以拥有自己的具有管理权限的帐户来管理设置和安装软件，而孩子可以拥有启用了家长控制的标准帐户来监视和限制其使用情况。
Start using your Office Add-in - Microsoft Support
Important: Apps for Office have a new name: Office Add-ins. We are currently updating our products, documentation, samples, and other resources to reflect the platform name change from "apps for Office and SharePoint" to "Office and SharePoint Add-ins". We made this change to better distinguish the extension platform from Office apps ...
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, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, Project Professional 2016, Project Standard 2016
如何安装最新版本的 DirectX - Microsoft 支持
DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏，你可能会收到错误消息“无法启动此程序，因为计算机中丢失 d3dx9_35.dll。