Sign in to SharePoint - Microsoft Support
Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.
Applies To:
SharePoint in Microsoft 365
Use voting buttons in messages - Microsoft Support
Add voting buttons to a message so that recipients can vote; results are tracked automatically in Outlook.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Download and install or reinstall Office 2019, Office 2016, or Office ...
Learn how to install Office 2013 on your PC or Office for Mac 2011.
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Get started with SharePoint - Microsoft Support
Get an overview of SharePoint. Learn about sites, lists and libraries, permissions, content types and workflows. In addition, read about some of the social features in SharePoint.
Applies To:
SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint Server 2016, SharePoint Server 2013 Enterprise, SharePoint in Microsoft 365, Office for business, Office 365 Small Business, Microsoft 365 admin, SharePoint Foundation 2013, SharePoint in Microsoft 365 Small Business
Phone Link help & learning
Discover how to use Microsoft Phone Link to connect your Android or iPhone to your PC for seamless access to notifications, calls, and apps.
Repair apps and programs in Windows - Microsoft Support
You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App, Excel for Windows Phone 10
激活 Windows - Microsoft 支持
了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。
How to get and use app passwords - Microsoft Support
Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.
Play a CD or DVD in Windows Media Player - Microsoft Support
Learn how to play different type of CDs and DVDs in Windows Media Player.