Create, edit, or delete a contact list or contact group in Outlook
Contact groups, or distribution lists, are a fast way to send a message to multiple email recipients, especially groups you repeatedly contact.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows
SUM function - Microsoft Support
How to use the SUM function in Excel to add individual values, cell references, ranges, or a mix of all three.
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
Add, turn off, or remove extensions in Microsoft Edge
Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.
Virus & threat protection in Windows Security - Microsoft Support
Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.
Applies To:
Microsoft account dashboard
电话链接要求和设置 - Microsoft 支持
系统要求. 手机连接 体验从 Windows 电脑和 手机连接 开始。 从电脑中，可以使用预安装在设备上的连接至 Windows 应用或从 Google Play 或 Samsung Galaxy Store 下载的应用连接到选择 Android、Samsung、HONOR、OPPO 和华硕设备。
Add or remove items from a drop-down list - Microsoft Support
Add or remove items from an existing drop-down list (also called a drop-down menu or drop-down box).
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
Schedule a meeting in Microsoft Teams - Microsoft Support
Find out how straight-forward it is to schedule remote meetings in Microsoft Teams for both people inside and outside of your organization.
Applies To:
Microsoft Teams
Install the latest updates for Windows - Microsoft Support
Learn about Windows service packs and download the latest updates for Windows 10 and Windows 8.1
App permissions - Microsoft Support
Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.
How to redeem gift cards and codes | Xbox Support
Learn how to redeem a Microsoft/Xbox gift card or other code on your mobile device, Windows device, or Xbox console.