Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Download and install or reinstall Office 2019, Office 2016, or Office ...
Install Microsoft 365 2019 or 2016 on a PC. Remember a one-time purchase version of Microsoft 365 is licensed for one install only. Depending on your browser, select Open file (in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Microsoft 365 Customer Service and Support
Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home
Contact Us - Microsoft Support
Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Contact Us - Microsoft Support
Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.
Microsoft 365 快速入门 - Microsoft 支持
Microsoft 365 快速入门. 通过所需基本信息快速开始正常使用，立即提高工作效率。. 工作或学校 在家里 Web. Microsoft 365 商业版. Word. Excel. PowerPoint. OneNote for Windows 10. Outlook.
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, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, OneDrive (work or school), Microsoft Teams, Office.com, OneDrive for Mac
欢迎使用 Microsoft 365 - Microsoft 支持
请按照以下六个简单步骤开始操作。. 如果还没有订阅者，请通过订阅获取所有Microsoft 365 功能 。. 培训：了解如何开始使用 Microsoft 365。. 按照 6 个简单的步骤创建、共享和协作使用 Microsoft 365 订阅。.
Applies To:
Office 2016
管理 Microsoft 365 订阅或 Office 产品 - Microsoft 支持
对于 Microsoft 365 家庭或个人订阅： 选择 “安装高级 Microsoft 365 应用 ”，并按照提示安装或重新安装桌面应用。 在“Microsoft 365 订阅”选项卡上，选择“ 管理”。 在此处，你可以： 使用预付代码或卡续订订阅。 了解详细信息。
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 for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, 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 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, 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 admin, Outlook on the web, Word Web App, Microsoft account dashboard, New Outlook for Windows
使用 Microsoft 365 随时随地进行协作 - Microsoft 支持
将自己从传统的工作方式中解放。 无论是远程工作还是移动设备上工作，都可以使用 Microsoft 365 轻松与其他人实时协作。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, PowerPoint for the web, SharePoint in Microsoft 365, 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, OneDrive (work or school), Office Mobile for Android, OneNote for Android phones, Office 365 Germany - Enterprise, Office Mobile for Windows Phone, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows, OneNote for Android
Microsoft 365 基础知识视频培训 - Microsoft 支持
培训：了解如何快速开始使用 Microsoft 365、共享和协作、通过 Microsoft Teams 工作、随时随地工作以及试用 Microsoft 365 的出色功能。
Applies To:
Microsoft 365 for home, Office for business, Office 365 Small Business, Office 365 First Release program, Office.com