Camera doesn't work in Windows - Microsoft Support
Learn how to troubleshoot when the camera is not working in Windows or you see errors 0xA00F4244 or 0x200F4244.
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.
All about Xbox Game Pass Friends & Family | Xbox Support
Learn how you can share your Game Pass subscription with up to four friends and members of your family.
Xbox Support
Xbox Support 为 Xbox、Game Pass 和账单问题提供帮助。在 Xbox Support 社区中获取建议和客户服务。
Improve accessibility with the Accessibility Checker
Before you send an Outlook email message or share a Word document, Excel spreadsheet, PowerPoint presentation, or OneNote notebook, run the Accessibility Checker to make your content easier for people with disabilities to read and edit.
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
Windows 10 中的设备加密 - Microsoft 支持
它是否适用于我的设备？ BitLocker 加密适用于运行 Windows 10 或 11 专业版、企业版或教育版的受支持设备。 在运行 Windows 10 或更高版本的受支持设备上，首次登录个人 Microsoft 帐户（如 @outlook.com 或 @hotmail.com）或工作或学校帐户时，系统将会自动打开 BitLocker。
Download files from the web - Microsoft Support
Learn how to download files from the web, change your default download location, and find files you've downloaded on your PC using Internet Explorer.
Surface Go 2 specs and features - Microsoft Support
Surface Go 2 features Connect your device anywhere. Get laptop versatility with the built-in Kickstand and Signature Type Cover. With WiFi and optional LTE Advanced, you’ll be able to work anywhere you need to.
XLOOKUP 函数 - Microsoft 支持
注意: XLOOKUP 在 Excel 2016 和 Excel 2019 中不可用，但是，你可能会遇到将 Excel 2016 或 Excel 2019 中的工作簿与其他人使用较新版本的 Excel 创建的 XLOOKUP 函数配合使用的情况。
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 2016, Excel for iPad, Excel for iPhone, Excel for Android tablets, Excel for Android phones
How your PC gaming account relates to your Microsoft Store account
The Xbox app on PC relies on two Microsoft accounts: the Microsoft Store account, and the Xbox account (your PC gaming account). The Microsoft Store account provides access to owned games, subscription benefits, and other Xbox app purchases made by that account. The Xbox account is used for game streaming access, in-game purchases, achievements, and friends.