Office Help & Training
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Receive Remote Assistance Support from Microsoft
Remote Assistance Support from Microsoft allows a Microsoft support professional in another location to view your computer screen and work on your computer over a secured connection.Protect yourself from tech support scams.
Office Help & Training
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修复 Office 应用程序 - Microsoft 支持
修复损坏的 Office 应用安装。 根据 Office 安装类型 (即点即用或基于 MSI 的) ，你将看到以下选项以继续修复。
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
Surface 恢复映像下载 - Microsoft 支持
开始之前 你的 Surface 附带 Windows 恢复信息，可使用它恢复 Surface 或将其重置为出厂状态。 请在下载恢复映像前始终先尝试这样做。
帐户帮助
获取有关 Microsoft 帐户的帮助。 了解如何设置 Microsoft 帐户，如何保护它，并使用它来管理服务和订阅。
在 Microsoft Edge 中管理 Cookie：查看、允许、阻止、删除和使用 - Microsoft 支持
获取有关 Windows 安全的帮助; 在 Microsoft Edge 中查看和删除浏览器历史记录; 删除和管理 Cookie; 重新安装 Windows 时安全移除有价值的内容
Applies To:
Microsoft Edge
在电脑上启用 TPM 2.0 - Microsoft 支持
发布时间：2021 年 8 月. 本文适用于无法升级到Windows 11的用户，因为他们的电脑当前未启用 TPM 2.0，或者他们的电脑能够运行 TPM 2.0，但未设置为这样做。
使用 SUMPRODUCT 对一个或多个数组中的对应值的乘积求和
使用带数组（单元格区域）的 sumproduct，乘以数组中的各单元格（例如，单元格 b2 x c2），然后将结果相加。
Applies To:
Excel 2013
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