Add your other email accounts to Outlook.com - Microsoft Support
Learn to add email accounts such as Gmail and Yahoo! Mail to your Outlook.com app so you can view all of your mail from one location.
Applies To:
Outlook.com
在 Windows 中管理用户帐户 - Microsoft 支持
在 Windows 中管理用户帐户. Windows 允许添加多个用户帐户以使用同一设备，使每个用户都有自己的设置、文档和应用程序。. 例如，家长可以拥有自己的具有管理权限的帐户来管理设置和安装软件，而孩子可以拥有启用了家长控制的标准帐户来监视和限制其使用 ...
Using product keys with Office - Microsoft Support
Common questions about Microsoft 365 product keys Check the sections below to find out if you need an Microsoft 365 product key and what to do with your key if you have one.
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, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Microsoft 365 for home, InfoPath 2013
Avoid and report Microsoft technical support scams
Avoid and report Microsoft technical support scams. Security. Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s ...
Upload and save files and folders to OneDrive - Microsoft Support
Training: How to save and upload files and folders to OneDrive in your browser or on your desktop.
Applies To:
OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
エクスプローラーを見つけて開く - Microsoft サポート
Windows 11のエクスプローラーは、必要なファイルをすばやく簡単に取得するのに役立ちます。. Windows 11でチェックするには、タスク バーまたはスタート メニューで選択するか、キーボードの Windows ロゴ キー + E キー を押します。. エクスプローラーの使用 ...
Windows Media Player - Microsoft Support
Learn how to download, customize, and troubleshoot Windows Media Player 12 with helpful guides and tips.
如何安装最新版本的 DirectX - Microsoft 支持
Windows XP 和 Windows Server 2003. 本文介绍如何获取最新版本的 DirectX 以启用系统上的游戏和多媒体应用程序。.
Windows 11 and Secure Boot - Microsoft Support
Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。
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 2019 for Mac, Excel 2016, Excel Web App, Excel for Windows Phone 10