Edit a PDF - Microsoft Support
To edit a PDF, open it in Word. This works best with PDFs that are mostly text. PDFs of book chapters or something that looks like a manuscript from a copier won't be formatted well in Word.
Applies To:
Word for Microsoft 365, Word 2021, Word 2019, Word 2016
Manage display language settings in Windows - Microsoft Support
The display language you select changes the default language used by Windows features, such as Settings and File Explorer. Select Start > Settings > Time & Language > Language.
Office のライセンス認証を行う - Microsoft サポート
新しい Windows 10 PC にプリインストールされている Office をライセンス認証する、または新しいプロダクト キーを使用する方法について説明します。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 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 Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
Windows Startup Settings (including safe mode) - Microsoft Support
Safe mode starts Windows with a minimal set of drivers and services to help troubleshoot issues. If a problem doesn't reappear when you start your PC in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes.
Recover an earlier version of an Office file - Microsoft Support
If the AutoRecover option is turned on, you can automatically save versions of your file while you’re working on it. How you recover something depends on when you saved it. If you’ve saved the file. Open the file you were working on.
Applies To:
Excel for Microsoft 365, PowerPoint for Microsoft 365, Excel 2021, PowerPoint 2021, Excel 2019, PowerPoint 2019, Excel 2016, PowerPoint 2016
在 Microsoft Edge 中管理 Cookie：查看、允许、阻止、删除和使用 - Microsoft 支持
如果你不希望第三方站点在你的电脑上存储 Cookie，则可以阻止 Cookie。 但是执行此操作可能会导致某些页面无法正确显示，或者可能会从站点收到一条消息，通知你需要允许 Cookie 才能查看该站点。
Applies To:
Microsoft Edge
Product activation for Windows – online & support telephone numbers
To activate Windows 11 using an internet connection: As Windows 11 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > System > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows.. To activate Windows 11 by phone:
Filter websites and searches using Microsoft Family Safety
Establishing internet boundaries is an important way to protect yourself and your family from inappropriate web content. Microsoft Family Safety web and search filters work across any Windows, Xbox and mobile device that has the Microsoft Edge browser and Family Safety apps installed.
Applies To:
Microsoft Family Safety
有关 Microsoft Teams 中的群组聊天的第一个注意事项 - Microsoft 支持
如果需要在频道之外、你和一小群人之间进行较小的讨论，请开始群组聊天。 你可以将你的任何朋友或同事拉入组。 通过群组聊天，任何人都可以共享与项目相关的文件并拨打电话。
Applies To:
Microsoft Teams
Microsoft Edge 中的 Internet Explorer 模式 - Microsoft 支持
有些网站专为与 Internet Explorer 一起使用，它们具有 Microsoft Edge 等新式浏览器不支持的功能。 如果你需要查看其中的某个网站，可使用 Microsoft Edge 中的 Internet Explorer 模式。