Learn how to chat with Copilot Companion on WhatsApp, a social app supported by Microsoft. Find out how to delete your chat history, withdraw your consent, and more.

Learn how to remove apps and programs from your Windows 10 or 11 device using different methods. Find tips and troubleshooters for common issues and errors.

Learn how to use Snipping Tool to take a snapshot of any part of your screen and make changes or notes. Find out the keyboard shortcuts, video snip options, and how to share your snips.

Learn how to find, add, turn off, and remove extensions in Microsoft Edge, the browser for Windows 11 and Windows 10. Extensions are tools that customize your browser experience and offer you more control.

Learn how to create and use app passwords for devices that don't support two-step verification. Find out how to sign in with app passwords for Xbox 360, Outlook, BlackBerry, and more.

Learn how to play different formats of audio and video files with Media Player and codecs. Find out which codecs are included with Windows 10 and which ones you can install from the Microsoft Store.

Learn how to get the most out of Microsoft Rewards by searching with Bing, using Edge, playing Xbox, and more. Find out the best practices, account policies, and types of rewards you can get with your points.

Learn about the latest features and fixes for Windows 11, version 23H2, released on 10/31/2023. Find out how to install the update, what's new in Copilot in Windows (in preview), Microsoft Teams (free), and more.

Microsoft Defender is a security app for Microsoft 365 subscribers that includes anti-malware, web protection, and identity theft monitoring. Learn how to install, use, and share Microsoft Defender with your family on Windows, Mac, Android, and iOS devices.

如果这是你第一次安装 Microsoft 365，则可能需要先执行一些设置步骤。展开下面的 “了解详细信息”部分。 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转到“登录并安装 Office”的部分。