How to sign in to a Microsoft account - Microsoft Support
Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.
Applies To:
Microsoft 365 for home, Outlook.com, Microsoft 365 for Mac, Microsoft 365 for Windows, Microsoft account dashboard, Microsoft Edge, Microsoft Teams, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Repair an Office application - Microsoft Support
Follow the steps for your installation type. Click-to-run. In the window How would you like to repair your Office Programs, select Online Repair > Repair to make sure everything gets fixed. (The faster Quick Repair option is also available, but it only detects and then replaces corrupted files.) MSI-based.
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 Professional 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 Professional 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, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, Microsoft 365 for home, 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, InfoPath 2013, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Cancel a Microsoft 365 subscription - Microsoft Support
If you purchased a Microsoft 365 subscription from a third-party retailer instead of the Microsoft Store, contact the third-party retailer directly to manage your subscription and billing.
修复 Windows 中的蓝牙问题 - Microsoft 支持
检查蓝牙设备. 确保蓝牙设备已打开、已充电或具有新电池，并且位于电脑的连接范围内。. 然后尝试执行以下操作：. 关闭你的蓝牙设备，等待几秒钟，然后将其重新打开。. 确保你的蓝牙设备位于有效范围内。. 如果你的蓝牙设备无响应或响应迟缓，请检查以 ...
Create a system restore point - Microsoft Support
Windows 10. In the search box on the taskbar, type Create a restore point, and select it from the list of results. On the System Protection tab in System Properties, select Create. Type a description for the restore point, and then select Create.
Contact - Microsoft Support
Contact - Microsoft Support
重新安装 Windows - Microsoft 支持
使用安装介质重新安装Windows 11. 将创建的安装媒体连接到电脑，然后重新安装Windows 11。. 打开“ 文件资源管理器 ” ，然后选择安装介质所在的驱动器。. 在驱动器的根目录中，双击 setup.exe，然后在系统询问你是否允许应用对你的设备进行更改时选择“ 是 ...
Microsoft account security info & verification codes
Learn how to manage your Microsoft account security info and troubleshoot verification code issues.
Applies To:
Microsoft account dashboard
Create workbook links - Microsoft Support
A workbook link (previously called an external reference) is a way to combine data from other workbooks or other sheets in the same workbook. You might want to use them to: Link workbooks from several departments and then integrate pertinent data into a summary workbook. When the source workbooks change, the summary workbook is updated.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
在 Windows 中管理用户帐户 - Microsoft 支持
在 Windows 中管理用户帐户. 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 ...