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Microsoft Support
Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.
Repair an Office application - Microsoft Support
Depends on your Office installation type (Click-to-run or MSI-based), you'll see the following options to proceed with the repair. Follow the steps for your installation type.
适用于: Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 Outlook, Microsoft 365 专属 PowerPoint, Microsoft 365 专属 Access, OneNote for Microsoft 365, Microsoft 365 专属 Publisher, Visio 计划 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project 专业版 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 Professional 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, Project 专业版 2016, Project Standard 2016, Publisher 2016, Visio 专业版 2016, Visio 标准版 2016, Office 2016, Microsoft 365 家庭版, Office 商业版, Office 365 小型企业版, Microsoft 365 管理员, 由世纪互联运营的 Office 365, 由世纪互联运营的 Office 365 - 小型企业管理员版, 由世纪互联运营的 Office 365 - 管理员版, InfoPath 2013, Office 365 Germany – 企业版, Office 365 Germany - 企业管理员版
Install the latest updates for Windows - Microsoft Support
Windows 11 automatically downloads and installs updates to make sure your device is secure and up to date. This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected.
KB5005463PC Health Check Application - Microsoft Support
Learn how to download, install, and use the PC Health Check app to check your device's compatibility with Windows 11 and get tips to improve its performance.
Getting the most out of your PC backup - Microsoft Support
When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier.
Where to enter your Office product key - Microsoft Support
These steps apply only to Office Professional Plus, Visio Professional, or Project Professional. Step 1: Start an Office app, like Word, Project, or Visio, depending on your purchase.. Step 2: In the Sign in to set up Office window, select I don't want to sign in or create an account (it's a small link at the bottom of the window).. Step 3: Enter your Office product key, without hyphens.
适用于: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 家庭版, Office 商业版
Update to the new Microsoft Edge - Microsoft Support
At the top corner of the browser, select Settings and more > Settings . Under Settings , do any of the following: To change appearance, select Appearance and make the changes you want to your default theme, zoom, toolbar, and fonts.
Improve my PC performance in Windows - Microsoft Support
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
Server settings you'll need from your email provider
Setting. Description. Write Your Setting Here. Example. Host Name. Your incoming mail server name. outlook.office365.com. Username. The email address you want to set up.
适用于: Microsoft 365 专属 Outlook, Microsoft 365 Mac 版专属 Outlook, Microsoft 365 家庭版, Office 商业版, Office 365 小型企业版, Microsoft 365 管理员, 由世纪互联运营的 Office 365, 由世纪互联运营的 Office 365 - 小型企业管理员版, Outlook.com, 由世纪互联运营的 Office 365 - 管理员版, 新的 Outlook for Windows, Outlook for iOS, Outlook for Windows Phone 10, Windows 10 版 Outlook 邮件, 适用于 Exchange Server 2016 的 Outlook 网页版
Open your entire favorites bar in Microsoft Edge
Choose Open all, or Open all in new window, or Open all in new InPrivate window.