Reactions in Microsoft Outlook - Microsoft Support
Important: Reactions are only available to individuals using a work or school account in Outlook with a qualifying Microsoft 365 subscription.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2016, Microsoft 365 admin, Outlook on the web, Microsoft 365 Apps for business, New Outlook for Windows, Outlook for Android, Outlook for iOS
Enforcements | Xbox Support
Find out how to submit a case review and learn more about your Xbox enforcements.
How to troubleshoot Windows Installer errors - Microsoft Support
Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.
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
在 Windows 中查找 BitLocker 恢复密钥 - Microsoft 支持
了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。
Account help
Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.
如何添加新的 Xbox 好友 | Xbox Support
了解如何添加新的 Xbox 好友，以便快速在线找到他们，为你的下一场游戏冒险做好准备。
Use an eSIM to get a cellular data connection on your Windows PC
Learn how to use an eSIM to connect your Windows PC to the internet over a cellular data connection.
What is a Microsoft account? - Microsoft Support
A Microsoft account is a personal account required for access to Microsoft’s products and services.
Applies To:
Microsoft account dashboard
Windows Installer 4.5 is available - Microsoft Support
Describes the new and improved features of Microsoft Windows Installer 4.5. The article also discusses the issues that are addressed from earlier versions of Windows Installer.