If you've been persuaded to download one of these files, just close the file and delete it. If you've already enabled the active content, you'll want to run a full antimalware scan of your computer. How can you spot these scams? Fortunately, these scams are often easy to spot.

了解如何在移动设备、Windows 设备或 Xbox 主机上兑换 Microsoft/Xbox 礼品卡或其他代码。

Before you can use Authenticator as a way to sign in, you need to download the app and have already added Authenticator to your accounts. Starting July 2025, the autofill feature in Authenticator will stop working, and from August 2025, passwords will no longer be accessible in Authenticator.

Games & apps Friends & social activity Explore gaming on Xbox Put Xbox in your pocket and play on our mobile apps Get connected with Xbox gaming accessories Optimize space by installing only the game features you want Have something to say?

Learn what you can do if you're not receiving account aign-in verification codes.

注意: 我们会尽量使所有应用商店版本保持最新状态，但Microsoft不对其他网站上提供的版本负责。 未在中国使用 Authenticator？ 可以从 Google Play 商店 下载并安装 Authenticator。

Xbox Support 为 Xbox、Game Pass 和账单问题提供帮助。在 Xbox Support 社区中获取建议和客户服务。

验证你拥有许可证后，无论何时需要安装或重新安装 Microsoft 365，都可以直接转到下一部分， 即登录以下载 Office，然后选择相应的选项卡，以获得有关 PC 或 Mac 安装的步骤。

下载并安装或重新安装Office 2021、Office 2019 或 Office 2016 应用对象 重要: 对 Office 2016 和 Office 2019 的支持将于 2025 年 10 月 14 日结束，并且没有扩展安全更新。 所有 Office 2016 和 Office 2019 应用将继续正常运行。

移至 m365.cloud.microsoft/apps ，然後使用您的 Microsoft 365 帳戶登入。 選取 [安裝及其他]，然後選取 [安裝 Microsoft 365 應用程式]。