Windows 中 HDR 视频的显示要求 - Microsoft 支持
要在 Windows 11 中播放 HDR 视频，显示器、电脑和显卡必须满足某些要求。 以下是具体要求： 显示器. 你的显示器可以是内置显示器，如笔记本电脑、平板电脑或二合一电脑上的显示器，或者可能是连接到电脑的外部显示器。
Internet Explorer help - Microsoft Support
Support for Internet Explorer 11 has ended on June 15, 2022. Make the switch to Microsoft Edge to experience the web in a whole new way.
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
App & browser control in Windows Security - Microsoft Support
Learn how to protect your device with Windows Defender SmartScreen and other app and browser control settings in Windows Security.
June 11, 2024—KB5039214 (OS Build 14393.7070)
Windows 10, version 21H2 update history; July 9, 2024—KB5040427 (OS Builds 19044.4651 and 19045.4651) June 11, 2024—KB5039211 (OS Builds 19044.4529 and 19045.4529)
Microsoft Easy Fix solutions have been discontinued
Describes Microsoft easy fix solutions and how to use them. "Microsoft easy fix" was formerly known as "Microsoft Fix it."
在 PC 或 Mac 上下載並安裝或重新安裝 Microsoft 365 或 Office 2021
了解如何在電腦或 Mac 上安裝、重新安裝或啟用 Microsoft 365 或 Office 2019。
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
桌面主题 - Microsoft 支持
从 Microsoft 获取免费的 Windows 主题，以个性化设置电脑的背景、颜色和声音。
Excel 帮助和学习
查找 Microsoft Excel 帮助和学习资源。 了解如何有效使用 Excel 的指导文章、指南、培训视频和提示。
Microsoft 支持
Microsoft 支持可帮助你处理 Microsoft 产品的问题。 查找有关 Microsoft Copilot、Microsoft 365、Windows、Surface 等操作方法的文章、视频和培训。