Download and install or reinstall Office 2019, Office 2016, or Office ...
From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Activate Office - Microsoft Support
Select your version of Microsoft 365 below to learn how to activate Microsoft 365. Activate Microsoft 365 or a non-subscription version of Office. Activate Office that's pre-installed on a new Windows device. Activate an Office purchase or offer that's included on a new Windows device.
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, Microsoft 365 admin, Project for Office 365
Download and install Skype for Business on Windows
If you have Microsoft 365 but don't already have Skype for Business and need to install it, see: Install Skype for Business on Windows. Install Skype for Business on a mobile device. Sign in to Skype for Business. Enter your work or school account.
Applies To:
Skype for Business, Skype for Business Online
登录到 SharePoint - Microsoft 支持
登录到 SharePoint. 转到 office.com ，然后登录到工作或学校帐户。. 提示 ：如果在“所有应用”下看不到“SharePoint ”应用 ，请使用窗口顶部附近的“搜索”框搜索 SharePoint 。. 有关详细信息，请参阅 从何处登录 Microsoft 365 。. 注意: 本快速入门中的图像描述新式 ...
Applies To:
SharePoint in Microsoft 365
Download and Install or Reinstall Microsoft 365 or Office 2019 on a PC ...
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Microsoft 支持
Microsoft 支持可帮助你处理 Microsoft 产品的问题。. 查找有关 Microsoft Copilot、Microsoft 365、Windows、Surface 等操作方法的文章、视频和培训。.
About Genuine Windows - Microsoft Support
The Microsoft website can help you identify counterfeit software and file a counterfeit software report if needed. Validation failure is common for versions of Windows that were purchased from an online auction site, or if Windows was on a used PC that you purchased.
Phone Link help & learning
Find help and support content for Microsoft Phone Link. Learn time-saving tips and explore how you can use Phone Link to stay productive.