了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Update Surface devices and Windows. Download the latest drivers and firmware updates to keep your Surface devices performing their best.

Learn how to earn Microsoft Rewards points when you browse the web with Microsoft Edge, search on Bing.com, and more.

Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how to install Windows 11, including the recommended option of visiting the Windows Update page in Settings.

Learn how to use Wi-Fi 7 and Wi-Fi 6 and WPA3 in Windows for better wireless coverage and network security.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Learn how to view and delete your browser history and other history in Microsoft Edge.