Office Help & Training
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Windows Update: FAQ - Microsoft Support
Learn how to get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.
Microsoft 帐户安全信息和验证码 - Microsoft 支持
了解如何管理 Microsoft 帐户安全信息和排查验证码问题。
Applies To:
Microsoft account dashboard
Improve accessibility with the Accessibility Checker
Run the Accessibility Checker to check your Microsoft 365 files for issues that can make it difficult for people with disabilities to read and use the files.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, OneNote for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel for the web, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Visio Professional 2021, Visio Standard 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Visio Professional 2019, Visio Standard 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Visio Professional 2016, Visio Standard 2016, 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
Learn about performance features in Microsoft Edge
Discover how to boost your browsing speed and save battery life with Microsoft Edge's performance features, such as sleeping tabs and efficiency mode.
Applies To:
Microsoft Edge
Install Skype for Business - Microsoft Support
Learn how to install Skype for Business on your Windows computer, mobile device, or Macintosh.
Applies To:
Office for business, Office 365 Small Business, Microsoft 365 admin, Office.com, Skype for Business, Skype for Business Basic, Skype for Business for Android, Skype for Business for iPad, Skype for Business for iPhone, Skype for Business for Mac, Skype for Business for Windows Phone, Skype for Business Online
Your account settings are out-of-date in Mail or Calendar for Windows ...
Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.
Applies To:
Calendar for Windows 10, Mail for Windows 10
View device and app use with Family Safety activity reporting
Learn how to receive and interpret activity reports of your child's device use, including web browsing, apps and games usage, and screen time.
Applies To:
Microsoft Family Safety
Make older apps or programs compatible with Windows
Learn how to get older apps or programs to run on Windows 10 or Windows 11 by adjusting compatibility settings.
Request a refund for digital games | Xbox Support
Find out how to submit a request for a refund for a purchase of digital Xbox content.