Change your Microsoft account password - Microsoft Support
The steps below describe how to change a known password. If you need to reset your password because you forgot it, see Reset your Microsoft account password instead.
Applies To:
Microsoft account dashboard
激活 Office - Microsoft 支持
激活 Microsoft 365 或非订阅版本的 Office. 当启动未激活的 Microsoft 365 应用时，系统将提示登录到 Microsoft 365。. 请务必使用用于购买或订阅 Microsoft 365 的 Microsoft 帐户或工作或学校帐户进行登录。. 注意: 如果新设备上预安装了 Microsoft 365，请参阅 激活新 Windows 设备上 ...
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, Office.com, Project for Office 365
Set up your Microsoft 365 sign-in for multi-factor authentication
Once your admin enables your organization, and your account, for multi-factor authentication (MFA) you have to set up your user account to use it. This should only take a minute or so.
Applies To:
Office for business, Microsoft 365 admin
Windows 11版本 23H2 更新历史记录 - Microsoft 支持
Windows 11版本 23H2 的新增功能. Windows 11，版本 22H2 和 23H2 共享一个通用的核心操作系统和一组相同的系统文件。. 因此，Windows 11版本 22H2 和 23H2 的发行说明将共享更新历史记录页。. 每个发布页将包含 22H2 和 23H2 已解决的问题列表。. 请注意，23H2 将始终包含 22H2 受 ...
Uninstall Office from a PC - Microsoft Support
The following steps describe how to uninstall Microsoft 365 products on a PC (laptop, desktop, or 2-in-1). For Mac, see Uninstall Office for Mac.
Applies To:
Office 2021, Office 2019, Office 2016, Microsoft 365 for home, 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, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
How to create a new Microsoft account - Microsoft Support
Microsoft email addresses are not reused, so even if an account was closed a long time ago, you cannot create a new account using the old email address.
重新安装 Windows - Microsoft 支持
使用安装介质重新安装Windows 11. 将创建的安装媒体连接到电脑，然后重新安装Windows 11。. 打开“ 文件资源管理器 ” ，然后选择安装介质所在的驱动器。. 在驱动器的根目录中，双击 setup.exe，然后在系统询问你是否允许应用对你的设备进行更改时选择“ 是 ...
Look up values with VLOOKUP, INDEX, or MATCH - Microsoft Support
Learn how to use VLOOKUP, INDEX, or MATCH to search for data in Excel. Get a quick refresher and more tips from Microsoft Support.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Unblock my Outlook.com account - Microsoft Support
To unblock your account, you'll need to reset your password. Enter the email address of the blocked account, then enter the characters you see on your screen and select Next. Enter the code generated by your authenticator app or select Use a different verification option to get a text message.
Applies To:
Outlook.com
Import data from data sources (Power Query) - Microsoft Support
Use Power Query in Excel to import data into Excel from a wide variety of popular data sources, including CSV, XML, JSON, PDF, SharePoint, SQL, and more.
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2021, Excel 2019, Excel 2016, Excel 2013