打开或关闭 Microsoft Defender 防火墙 - Microsoft 支持
即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：
Equation Editor - Microsoft Support
Equation Editor (Microsoft Equation 3.0) was included in earlier versions of Word, but was removed from all versions in the January 2018 Public Update (PU) and replaced with a new equation editor.
Applies To:
Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Excel 2010, Word 2010, Outlook 2010, PowerPoint 2010, Excel 2007, Word 2007, Outlook 2007, PowerPoint 2007
使用语音键入来说话，而不是在电脑上键入 - Microsoft 支持
通过语音键入，可以通过说话在电脑上输入文本。 语音键入使用由 Azure 语音服务提供支持的联机语音识别。
在 Microsoft Edge 中保存或清除密码 - Microsoft 支持
在浏览 Web 时，Microsoft Edge 可以轻松保存密码。 在桌面或移动设备上的 Edge 浏览器中输入新密码时，Microsoft Edge 会询问你是否要记住用户名和密码。
Get started with Python in Excel - Microsoft Support
Get started using Python functions directly within your Excel spreadsheet data.
Applies To:
Excel for Microsoft 365
Windows 的语言包 - Microsoft 支持
了解如何下载、安装和配置适用于你的 Windows 版本的额外语言包。
Stay safe with a genuine Office license - Microsoft Support
Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.
Applies To:
Office 2019
Set screen time limits across devices - Microsoft Support
Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.
Applies To:
Microsoft Family Safety
Hardware warranty, services, and repair
Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.
在 Windows 中以安全模式启动电脑 - Microsoft 支持
了解如何从“设置”、登录屏幕和黑屏或空白屏幕启动到 Windows 中的安全模式。