自动修复 Windows 安全问题 - Microsoft 支持
按照以下步骤自动诊断并修复 Windows 安全问题，方法是打开 UAC、DEP 防护、Windows 防火墙和其他 Windows 安全选项和功能。
Office Help & Training
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Microsoft Support
Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.
下载适用于 Surface 的驱动程序和固件 - Microsoft 支持
完成安装更新后，建议安装所有可用的可选更新。 若要安装可选更新，请转到任务栏中的“搜索”框，键入“查看可选更新”，然后从结果列表中选择它。如果更新在 驱动程序更新中可用，请确保已安装所有 “Surface” 命名驱动程序。. 检查是否有可选更新
退还从 Microsoft 购买的物品以进行换货或退款 - Microsoft 支持
了解如何接收从 Microsoft 购买的商品的退款或换货。
Applies To:
Microsoft account dashboard
Microsoft 帐户安全信息和验证码 - Microsoft 支持
为什么需要验证码？ 当你登录到你的 Microsoft 帐户时，我们可能会要求提供其他证明，证明确实是你的帐户。 最多可以添加 10 种不同的方法来验证登录，并且可以选择：
Applies To:
Microsoft account dashboard
Get started with Microsoft Teams (free) in Windows 11
A. Turn on/off webcam - Turn your camera on or off. B. What's new and more - Check out What's new and Give your feedback for Microsoft Teams (free).. C. Open Teams - Open the full Microsoft Teams (free) experience. D. Start call - Start a new audio or video call. E. Meet now - Start an instant meeting. F. New Chat - Get a new conversation started.. G. Search by name - Search for contacts, one ...
Applies To:
Microsoft Teams, Microsoft Teams personal
使用 Windows 激活疑难解答 - Microsoft 支持
激活有助于验证你的 Windows 副本是否为正版，且未在超过 Microsoft 软件许可条款所允许数量的设备上使用。 如果无法激活激活Windows 11，激活疑难解答可以提供帮助。
Use Markdown formatting in Microsoft Teams - Microsoft Support
Use Markdown to share code. You can format and share your code on Teams. To add an inline block of code, start and end the text with a backtick (` ) key, which is located next to the 1 on your keyboard, followed by a space.
Applies To:
Microsoft Teams
Windows 10 update history - Microsoft Support
Windows 10, version 2004 and Windows Server, version 2004 update history; End of service statement; December 14, 2021—KB5008212 (OS Builds 19041.1415, 19042.1415, 19043.1415, and 19044.1415)